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vraag 8.37 anatomie

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Q8.37: Bespreek de oorsprong, verloop, doel en functie van de volgende craniale zenuw
(keuze van I-XII)(3)

- I: N. Olfactorius:
 Oorsprong (origine): olfactoire mucosa in neusholte
 Verloop:
 Craniale passage: lamina cibriformis
 Terminus (eindpunt): olfactoire bulbs (= uitstulping van hersenen,
bolletje op tekening)
 Doel: sensorisch
 Functie: reuk
- II: N. opticus
 Oorsprong: retina (netvlies)
 Verloop:
 Craniale passage: foramen opticum
 Terminus: middenhersenen en
thalamus
 Doel: sensorisch
 Functie: oogbewegingen,
ooglidbewegingen, pupilconstrictie, focus


foramen opticum

fissura orbitalis superior



- III: N. oculomotorius
 Oorsprong: middenhersenen
 Verloop:
 Craniale passage: fissura orbitalis superior
 Terminus: oogspieren, iris, lens
 Doel: motorisch
 Functie: oogbewegingen, ooglidbeweging, pupilconstrictie, focus
- IV: N. trochlearis
 Oorsprong: middenhersenen
 Verloop:
 Craniale passage: fissura orbitalis superior
 Terminus: m. obliquus superior
 Doel: motorisch
 Functie: oogbewegingen
- V: N. trigeminus (drielingzenuw)
 Oorsprong:
 V1: bovenste regio gelaat

,  V2: middenste regio gelaat
 V3: onderste regio gelaat, voorste 2/3 van tong, tanden
 Verloop
 Craniale passage
 V1: fissura orbitalis superior
 V2: foramen rotundum en foramen infraorbitale
 V3: foramen ovale
 Terminus
 V1: pons V2
 V2: pons V3
 V3: pons, kauwspieren
 Doel
 V1: sensorisch
 V2: sensorisch
 V3: sensorisch en
motorisch
 Functie
 V1: tast, temperatuur, pijn
 V2: tast, temperatuur, pijn
 V3: idem + kauwspieren
- VI: N. abducens
 Oorsprong: inferior pons
 Verloop
 Craniale passage: fissura orbitalis superior
 Terminus: m. rectus lateralis
 Doel: motorisch
 Functie: laterale oogbewegingen
- VII: N. facialis
 Oorsprong: anterieure 2/3 tong pons
 Verloop
 Craniale passage: interne acoustische meatus en foramen
stylomastoideum
 Terminus: thalamus gelaatsspieren en klieren
 Doel: sensorisch en motorisch
 Functie: smaak faciale expressie + secreties



Foramen stylomastoideum




Zenuw in heel licht geel op
tekening
- VIII: N. vestibulocochlearis = acusticus

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