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Samenvatting Basiswetenschappen 2: Neuro-Anatomie

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Complete samenvatting van de lessen en cursus Bevat 5 delen: - Neuro-Anatomie - Neuro-Fysiologie - Neuro-Pathologie - Psychiatrie - Geriatrie

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Hogeschool Gent


Basiswetenschappen 2
Neuro-anatomie, -fysiologie, -pathologie, geriatrie en psychiatrie




2021-2022

,Inhoud
1 HET ZENUWSTELSEL ONTVANGT, INTEGREERT EN BEANTWOORDT INFORMATIE .......................................................... 15

1.1 DE ANATOMISCHE OPDELING VAN HET ZENUWSTELSEL ..................................................................................................... 16

1.2 HET PERIFEER ZENUWSTELSEL KUNNEN WE VERDER OPDELEN IN EEN SOMATISCH EN EEN AUTONOOM
ZENUWSTELSEL. ............................................................................................................................................................................................... 16

1.3 DE NEUROLOGISCHE REACTIE ...................................................................................................................................................... 17

2 ZENUWWEEFSEL...................................................................................................................................................................................... 18

2.1 ZENUWWEEFSEL ................................................................................................................................................................................. 18

2.2 NEURONEN ............................................................................................................................................................................................ 18

ALGEMENE BOUW VAN EEN NEURON ..................................................................................................................................................... 18

ACTIEPOTENTIALEN REIZEN LANGS HET AXON ....................................................................................................................................... 19

NEURONEN STAAN VIA SYNAPSEN MET ELKAAR IN CONTACT ................................................................................................................. 19

ER BESTAAN 3 TYPES NEURONEN, MET TELKENS EEN VERSCHILLENDE FUNCTIE .................................................................................. 20

REGENERATIE VAN NEURONEN ............................................................................................................................................................. 22

2.3 NEUROGLIA........................................................................................................................................................................................... 22

NEUROGLIA IN HET CZS ....................................................................................................................................................................... 23

NEUROGLIA IN HET PZS = CELLEN VAN SCHWANN ............................................................................................................................... 24

2.4 GRIJZE EN WITTE STOF .................................................................................................................................................................... 25

GRIJZE STOF ......................................................................................................................................................................................... 26

WITTE STOF .......................................................................................................................................................................................... 27

3 PRIKKELGELEIDING EN PRIKKELOVERDRACHT ........................................................................................................................... 28

3.1 PRIKKELGELEIDING BINNEN EEN NEURON................................................................................................................................ 28

DE CELMEMBRAAN ................................................................................................................................................................................ 29

RUSTTOESTAND .................................................................................................................................................................................... 30

DEPOLARISATIE .................................................................................................................................................................................... 30

REPOLARISATIE .................................................................................................................................................................................... 31

HYPERPOLARISATIE .............................................................................................................................................................................. 31

3.2 DE SYNAPS: DE PLAATS VOOR PRIKKELOVERDRACHT VAN NEURON NAAR EEN VOLGENDE CEL ...................... 32

BOUW VAN EEN SYNAPS ........................................................................................................................................................................ 32

ENKELE BEGRIPPEN .............................................................................................................................................................................. 33

VERLOOP VAN PRIKKELOVERDRACHT TER HOOGTE VAN SYNAPS .......................................................................................................... 33

HET TYPE NEUROTRANSMITTER BEPAALT HET EFFECT IN DE POSTSYNAPTISCHE CEL . .......................................................................... 34

3.2.4.1 Exciterende neurotransmitters ............................................................................................................................................... 34


1

, 3.2.4.2 Inhiberende neurotransmitters ............................................................................................................................................... 35

4 HET CENTRAAL ZENUWSTELSEL ....................................................................................................................................................... 35

4.1 BELANGRIJKSTE HERSENGEBIEDEN ........................................................................................................................................... 35

4.2 DE VENTRIKELS ................................................................................................................................................................................... 36

4.3 CEREBRUM OF GROTE HERSENEN ............................................................................................................................................... 37

CEREBRALE CORTEX............................................................................................................................................................................. 38

4.3.1.1 De hersenkwabben .................................................................................................................................................................. 39

4.3.1.2 Algemene functies van de cerebrale cortex ......................................................................................................................... 40

4.3.1.3 Motorische gebieden ............................................................................................................................................................... 40

oefening ........................................................................................................................................................................................................ 42

4.3.1.4 Sensorische gebieden ............................................................................................................................................................. 42

CEREBRALE WITTE STOF ....................................................................................................................................................................... 44

BASALE KERNEN ................................................................................................................................................................................... 44

4.4 DIENCEPHALON (TUSSENHERSENEN) ......................................................................................................................................... 46

EPITHALAMUS ....................................................................................................................................................................................... 46

THALAMUS ............................................................................................................................................................................................ 47

HYPOTHALAMUS ................................................................................................................................................................................... 47

HET LIMBISCH SYSTEEM ........................................................................................................................................................................ 49

4.5 HERSENSTAM (TRUNCUS CEREBRI) ............................................................................................................................................. 50

MIDDENHERSENEN (MESENCEPHALON) ................................................................................................................................................ 51

PONS .................................................................................................................................................................................................... 51

4.5.2.1 Formatio reticularis .................................................................................................................................................................. 52

MEDULLA OBLONGATA .......................................................................................................................................................................... 52

4.6 KLEINE HERSENEN ............................................................................................................................................................................. 53

4.7 DE MENINGES....................................................................................................................................................................................... 53

DURA MATER ........................................................................................................................................................................................ 54

ARACHNOÏD MATER ............................................................................................................................................................................... 55

PIA MATER ............................................................................................................................................................................................ 55

4.8 HET CEREBROSPINAAL VOCHT ..................................................................................................................................................... 56

4.9 HET RUGGENMERG ............................................................................................................................................................................ 57

4.10 SPINALE REFLEXEN ........................................................................................................................................................................... 60

5 NEURO- ANATOMIE: HET PERIFEER ZENUWSTELSEL ................................................................................................................. 61



2

,5.1 INTRODUCTIE ....................................................................................................................................................................................... 61

5.2 DE SPINALE ZENUWEN...................................................................................................................................................................... 61

PLEXUSSEN .......................................................................................................................................................................................... 62

5.3 DE HERSENZENUWEN (BELANGRIJK VOOR EXAMEN) ........................................................................................................... 62

NERVUS OLFACTORIUS (N. I) ................................................................................................................................................................ 64

NERVUS OPTICUS (N. II) ....................................................................................................................................................................... 64

NERVUS OCULOMOTORIUS (N. III) ........................................................................................................................................................ 65

NERVUS TROCHLEARIS (N. IV) ............................................................................................................................................................. 65

NERVUS TRIGEMINUS (N. V) ................................................................................................................................................................. 65

NERVUS ABDUCENS (N. VI) .................................................................................................................................................................. 66

NERVUS FACIALIS (N. VII) .................................................................................................................................................................... 67

NERVUS VESTIBULOCOCHLEARIS (N. VIII) ............................................................................................................................................ 68

5.3.8.1 Radix cochlearis ......................................................................................................................................................................... 69

5.3.8.2 Radix vestibularis....................................................................................................................................................................... 70

NERVUS GLOSSOPHARYNGEUS (N. IX)................................................................................................................................................. 71

NERVUS VAGUS (N. X) ..................................................................................................................................................................... 72

NERVUS ACCESSORIUS (N. XI) ........................................................................................................................................................ 73

NERVUS HYPOGLOSSUS (N. XII) ...................................................................................................................................................... 74

OVERZICHT HERSENZENUWEN ......................................................................................................................................................... 75

5.4 CENTRALE SYSTEMEN (LEZEN) ..................................................................................................................................................... 76

VESTIBULAIR SYSTEEM ......................................................................................................................................................................... 76

5.4.1.1 Het perifere deel van de radix vestibularis ........................................................................................................................... 76

5.4.1.2 Binnenkomen van de radix vestibularis in de hersenstam ................................................................................................. 77

5.4.1.3 Secundaire vestibulair systeem ............................................................................................................................................. 77

5.4.1.4 Samenwerking van oogspieren, halsspieren en evenwichtsorgaan ................................................................................. 78

AKOESTISCH SYSTEEM.......................................................................................................................................................................... 78

5.4.2.1 Nuclei cochleares..................................................................................................................................................................... 79

5.4.2.2 Colliculi inferiores ..................................................................................................................................................................... 80

5.4.2.3 Auditieve schors ....................................................................................................................................................................... 80

6 HET AUTONOOM ZENUWSTELSEL ..................................................................................................................................................... 81

6.1 AUTONOOM ZENUWSTELSEL = ONWILLEKEURIG ZENUWSTELSEL. ................................................................................. 81

BOUW: .................................................................................................................................................................................................. 81



3

, BESTAAT UIT 2 GROTE SUBEENHEDEN: ................................................................................................................................................. 82

7 NEUROPATHOLOGIE ............................................................................................................................................................................... 83

7.1 NAH .......................................................................................................................................................................................................... 83

7.2 TRAUMATISCH HERSENLETSEL (THL) ......................................................................................................................................... 84

EPIDEMIOLOGIE .................................................................................................................................................................................... 84

OORZAKEN............................................................................................................................................................................................ 84

PATHOFYSIOLOGIE ................................................................................................................................................................................ 84

7.2.3.1 Primair hersenletsel ................................................................................................................................................................. 85

7.2.3.2 Secundair hersenletsel ............................................................................................................................................................ 85

ERNST VAN LETSEL ............................................................................................................................................................................... 86

7.2.4.1 GCS (= glascow coma scale) ................................................................................................................................................. 86

7.2.4.2 Duur van de coma of bewustzijnsdaling ............................................................................................................................... 87

7.2.4.3 PTA (post traumatische amnesie) ......................................................................................................................................... 87

ZIEKTEBEELDEN .................................................................................................................................................................................... 88

PROGNOSE ........................................................................................................................................................................................... 88

VEGETATIEVE TOESTAND ...................................................................................................................................................................... 89

GEVOLGEN............................................................................................................................................................................................ 90

7.2.8.1 Sensomotorische problemen.................................................................................................................................................. 90

7.2.8.2 Epilepsie .................................................................................................................................................................................... 91

7.2.8.3 Zenuwschade ........................................................................................................................................................................... 91

7.2.8.4 Intellectuele schade ................................................................................................................................................................. 91

7.2.8.5 Gestoord geheugen ................................................................................................................................................................. 91

7.2.8.6 Gedragsproblemen .................................................................................................................................................................. 92

7.2.8.7 Ataxie ......................................................................................................................................................................................... 92

7.2.8.8 Spasticiteit ................................................................................................................................................................................. 92

7.2.8.9 Praxiestoornissen .................................................................................................................................................................... 92

7.2.8.10 Perseveratie.............................................................................................................................................................................. 93

7.2.8.11 Spraak- en taalstoornissen ..................................................................................................................................................... 93

7.2.8.12 Agnosie...................................................................................................................................................................................... 93

7.2.8.13 Attentiestoornissen .................................................................................................................................................................. 94

7.3 CVA .......................................................................................................................................................................................................... 95

DEFINITIE .............................................................................................................................................................................................. 95



4

, FYSIOLOGIE VAN DE HERSENENDOORBLOEDING ................................................................................................................................... 96

INCIDENTIE ............................................................................................................................................................................................ 96

CLASSIFICATIE ...................................................................................................................................................................................... 97

ISCHEMISCHE CVA ............................................................................................................................................................................... 97

7.3.5.1 Risicofactoren ........................................................................................................................................................................... 97

7.3.5.2 Prognose ................................................................................................................................................................................... 98

7.3.5.3 Gevolgen en stoornissen op lichamelijk vlak ....................................................................................................................... 99

a. Splitsing van het lichaam .................................................................................................................................................................. 99

b. Asymmetrie......................................................................................................................................................................................... 99

c. Pushen .............................................................................................................................................................................................. 100

d. Hemianopsie .................................................................................................................................................................................... 100

e. Incontinentie en obstipatie (= constipatie).................................................................................................................................... 100

f. Stoornissen in denken, emoties en gedrag ................................................................................................................................. 100

7.3.5.4 Behandeling ............................................................................................................................................................................ 101

7.3.5.5 Behandeling in ziekenhuis (Ischemische CVA) ................................................................................................................. 102

a. Fase 1: de hyperacute fase............................................................................................................................................................ 102

b. Fase 2: de acute fase ..................................................................................................................................................................... 102

c. Fase 3: de herstelfase .................................................................................................................................................................... 103

d. Fase 4: de revalidatiefase .............................................................................................................................................................. 103

HERSENBLOEDINGEN .......................................................................................................................................................................... 103

7.4 EPILEPSIE ............................................................................................................................................................................................ 104

DIAGNOSE ........................................................................................................................................................................................... 104

BEHANDELING ..................................................................................................................................................................................... 104

GEGENERALISEERD BEGIN .................................................................................................................................................................. 105

7.4.3.1 Tonisch clonisch..................................................................................................................................................................... 105

7.4.3.2 Absence .................................................................................................................................................................................. 105

FOCALE BEGIN .................................................................................................................................................................................... 105

7.5 EXTRAPIRAMIDALE ZIEKTEN ........................................................................................................................................................ 105

HET EXTRAPIRAMIDAAL SYSTEEM (EPS) ............................................................................................................................................ 105

DE ZIEKTE VAN PARKINSON ................................................................................................................................................................ 106

7.5.2.1 Definitie.................................................................................................................................................................................... 106

7.5.2.2 Etiologie................................................................................................................................................................................... 107



5

, 7.5.2.3 Epidemiologie ......................................................................................................................................................................... 107

7.5.2.4 Fysiopathologie ...................................................................................................................................................................... 107

7.5.2.5 Klinisch beeld ......................................................................................................................................................................... 108

7.5.2.6 Behandeling ............................................................................................................................................................................ 109

a. Medicamenteus................................................................................................................................................................................ 109

b. Chirurgie: deep brain stimulation (= DBS) ................................................................................................................................... 111

7.5.2.7 Prognose ................................................................................................................................................................................. 111

7.6 MULTIPLE SCLEROSE (MS) ............................................................................................................................................................ 112

DEFINITIE ............................................................................................................................................................................................ 112

DE MYELINE-SCHEDE: EVEN OPFRISSEN ............................................................................................................................................. 112

EPIDEMIOLOGIE .................................................................................................................................................................................. 113

ETIOLOGIE .......................................................................................................................................................................................... 113

VERLOOP ............................................................................................................................................................................................ 114

7.6.5.1 Klinische subtypes ................................................................................................................................................................. 114

a. Recidiverende-remitterende multipele sclerose (RRMS):.......................................................................................................... 115

b. Secundair progressieve multiple sclerose (SPMS)..................................................................................................................... 115

c. Primair progressief (PPMS) ........................................................................................................................................................... 115

d. Progressief-remitterende multipele sclerose (PRMS). ............................................................................................................... 115

SYMPTOMEN ....................................................................................................................................................................................... 115

7.6.6.1 Klinisch beeld ......................................................................................................................................................................... 115

7.6.6.2 Beginsymptomen ................................................................................................................................................................... 116

7.6.6.3 Motorische stoornissen van de piramidale baan ............................................................................................................... 116

7.6.6.4 Cerebellaire symptomen en hersenstam symptomen ...................................................................................................... 117

7.6.6.5 Visusstoornissen .................................................................................................................................................................... 117

7.6.6.6 Darm-en blaas stoornissen................................................................................................................................................... 117

7.6.6.7 Sensibiliteitsstoornissen ........................................................................................................................................................ 117

7.6.6.8 Andere ..................................................................................................................................................................................... 118

PROGNOSE ......................................................................................................................................................................................... 118

DIAGNOSE ........................................................................................................................................................................................... 118

THERAPIE............................................................................................................................................................................................ 119

7.7 INFECTIES VAN HET ZENUWSTELSEL ........................................................................................................................................ 120

MENINGITIS ......................................................................................................................................................................................... 120



6

, MENINGO-ENCEFALITIS ....................................................................................................................................................................... 121

7.8 INTRACRANIËLE TUMOREN ........................................................................................................................................................... 121

VERSCHILLENDE TYPES ...................................................................................................................................................................... 122

BEHANDELING ..................................................................................................................................................................................... 123

PROGNOSE ......................................................................................................................................................................................... 123

7.9 AMYOTROFE LATERALE SCLEROSE .......................................................................................................................................... 123

DEFINITIE ............................................................................................................................................................................................ 123

EPIDEMIOLOGIE .................................................................................................................................................................................. 124

KLINISCH BEELD .................................................................................................................................................................................. 124

DIAGNOSE ........................................................................................................................................................................................... 124

BEHANDELING ..................................................................................................................................................................................... 125

7.10 HOOFDPIJN ......................................................................................................................................................................................... 125

CLASSIFICATIE ............................................................................................................................................................................... 125

GERIATRIE ........................................................................................................................................................................................................ 127

1 BEGRIPPEN .............................................................................................................................................................................................. 127

1.1 GERONTOLOGIE ................................................................................................................................................................................ 128

1.2 GERIATRIE ........................................................................................................................................................................................... 129

2 NORMALE VEROUDERING ................................................................................................................................................................... 130

2.1 DEMOGRAFISCHE ASPECTEN....................................................................................................................................................... 130

LEVENSVERWACHTING ........................................................................................................................................................................ 130

VERGRIJZING ...................................................................................................................................................................................... 132

LANGER LEVEN OF BETER LEVEN? ...................................................................................................................................................... 133

3 ALGEMENE VEROUDERING VAN DE VERSCHILLENDE STELSELS ........................................................................................ 133

3.1 HET CARDIOVASCULAIRE STELSEL ........................................................................................................................................... 134

DE BLOEDVATEN ................................................................................................................................................................................. 134

3.2 HET PULMONAAL STELSEL ........................................................................................................................................................... 136

3.3 HET ZENUWSTELSEL ....................................................................................................................................................................... 136

OUDERDOMSZIEKTEN VAN HET ZENUWSTELSEL (ZIE TERUG) .............................................................................................................. 136

HET PERIFERE ZENUWSTELSEL ........................................................................................................................................................... 136

3.4 DE ZINTUIGEN .................................................................................................................................................................................... 137

OOG.................................................................................................................................................................................................... 137

OOR .................................................................................................................................................................................................... 138



7

,3.5 HET IMMUNOLOGISCH STELSEL .................................................................................................................................................. 140

3.6 HET UROGENITALE STELSEL ........................................................................................................................................................ 140

DE NIEREN .......................................................................................................................................................................................... 140

DE URINEWEGEN................................................................................................................................................................................. 140

URINAIRE INCONTINENTIE ................................................................................................................................................................... 141

3.7 HET LOCOMOTORISCHE STELSEL .............................................................................................................................................. 141

HET SKELET ........................................................................................................................................................................................ 141

ADDENDUM: ARTROPLASTIEK HEUP .................................................................................................................................................... 141

DE SPIEREN ........................................................................................................................................................................................ 142

KRAAKBEEN ........................................................................................................................................................................................ 142

4 PROFIEL VAN DE GERIATRISCHE PATIËNT ................................................................................................................................... 143

4.1 CASUSSEN .......................................................................................................................................................................................... 143

CASUS 1: MIA ..................................................................................................................................................................................... 143

CASUS 2: ROBERT .............................................................................................................................................................................. 143

4.2 KENMERKEN VAN DE GERIATRISCHE PATIËNT ...................................................................................................................... 144

LEEFTIJD ............................................................................................................................................................................................. 144

MULTIPLE PATHOLOGIE ....................................................................................................................................................................... 144

GEWIJZIGDE PRESENTATIE EN VERLOOP VAN PATHOLOGIE ................................................................................................................. 145

VERMINDERDE ADAPTATIEMOGELIJKHEDEN ........................................................................................................................................ 145

BEDREIGDE VALIDITEIT........................................................................................................................................................................ 145

POLYFARMACIE ................................................................................................................................................................................... 146

NEIGING TOT PSYCHISCHE STOORNISSEN ........................................................................................................................................... 146

SOCIALE PROBLEMATIEK ..................................................................................................................................................................... 146

BEHANDELING EN MULTIDISCIPLINAIRE AANPAK .................................................................................................................................. 147

4.3 BEOORDELING VAN DE FUNCTIONELE CAPACITEIT BIJ OUDEREN ................................................................................. 147

BARTHEL INDEX .................................................................................................................................................................................. 148

LAWTON EN BRODY IADL-TESTS ....................................................................................................................................................... 149

KATZ -SCHAAL..................................................................................................................................................................................... 150

5 VOORZIENINGEN VOOR OUDEREN IN BELGIË.............................................................................................................................. 152

5.1 VOORZIENINGEN VOOR OUDEREN THUIS ................................................................................................................................. 152

THUISVERPLEEGDIENSTEN .................................................................................................................................................................. 152

MANTELZORGERS ............................................................................................................................................................................... 153



8

, GEZINS- EN BEJAARDENHULP ............................................................................................................................................................. 154

5.1.3.1 Wie krijgt hulp? ....................................................................................................................................................................... 154

5.1.3.2 Hoe wordt die hulp georganiseerd? .................................................................................................................................... 154

5.1.3.3 Financiële bijdrage................................................................................................................................................................. 154

EXTRA DIENSTEN ................................................................................................................................................................................ 154

5.1.4.1 Boodschappendienst ............................................................................................................................................................. 154

5.1.4.2 Warme maaltijden aan huis .................................................................................................................................................. 154

5.1.4.3 Uitleendiensten....................................................................................................................................................................... 154

ZORGWONEN OF KANGOEROEWONEN ................................................................................................................................................. 155

ERGOBEGELEIDING EN WOONADVIES ................................................................................................................................................. 155

5.2 HET ZIEKENHUIS: DE G-DIENST.................................................................................................................................................... 155

5.3 GESPECIALISEERDE INSTELLINGEN .......................................................................................................................................... 157

WOONZORGCENTRA ........................................................................................................................................................................... 157

RUST- EN VERZORGINGSTEHUIZEN ..................................................................................................................................................... 158

DAGVERZORGINGSCENTRUM (DVC) .................................................................................................................................................. 158

CENTRUM VOOR KORTVERBLIJF .......................................................................................................................................................... 159

CENTRUM VOOR HERSTELVERBLIJF .................................................................................................................................................... 160

ASSISTENTIEWONING .......................................................................................................................................................................... 160

6 GROTE GERIATRISCHE PROBLEMEN .............................................................................................................................................. 161

6.1 IMMOBILISATIE .................................................................................................................................................................................. 161

EPIDEMIOLOGIE EN ETIOLOGIE ............................................................................................................................................................ 161

PREVALENTIE VAN FIXEREN IN GENT .................................................................................................................................................. 161

FYSIOLOGIE VAN BEDRUST .................................................................................................................................................................. 162

COMPLICATIES .................................................................................................................................................................................... 163

6.1.4.1 Tromboflebitis/ Diep veneuze trombose/ longembool....................................................................................................... 163

6.1.4.2 Pneumonie .............................................................................................................................................................................. 163

6.1.4.3 Osteoporose ........................................................................................................................................................................... 163

6.1.4.4 Spieratrofie.............................................................................................................................................................................. 163

6.1.4.5 Decubitus ................................................................................................................................................................................ 164

6.1.4.6 Depressie, mentale achteruitgang, verwarring en desoriëntatie ..................................................................................... 164

7 CAPITA SELECTA ................................................................................................................................................................................... 165

7.1 EUTHANASIE....................................................................................................................................................................................... 165



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