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Uitgebreide samenvatting embryologie, inclusief alle afwijkingen, gastcolleges en practica, gehaald met 17/20!

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Een uitgebreide samenvatting van het vak embryologie, ook de gastcolleges zijn uitgewerkt. onderaan het bestand staan alle afwijkingen samengevat en is alle informatie van de practica ook verwerkt. Zelf heb ik met deze samenvatting een 17/20 gehaald!

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EMBRYOLOGIE




2023-2024

1

,INHOUD

Inleiding ........................................................................................................................................................... 7
Samengevat ..................................................................................................................................................... 8
Voortplanting ................................................................................................................................................... 9
De gametogenese ............................................................................................................................................... 9
Het mannelijke geslachtsstelsel ...................................................................................................................... 9
Het vrouwelijk geslachtsstelsel ..................................................................................................................... 10
De bevruchting .................................................................................................................................................. 12
Samengevat ................................................................................................................................................... 14
Bevruchting .................................................................................................................................................... 16
Pathologie van de bevruchting ..................................................................................................................... 16
Samengevat ................................................................................................................................................... 17
Klieving .......................................................................................................................................................... 18
Gastrulatie ..................................................................................................................................................... 19
Primitieve lichaamsvorm ................................................................................................................................ 21
Neurulatie ......................................................................................................................................................... 21
Differentiatie van het mesoderm ...................................................................................................................... 22
Ontwikkeling van het gastro-intestinaal stelsel .............................................................................................. 23
De eerste ontwikkelingsstadia ...................................................................................................................... 23
De mondholte en de farynx.......................................................................................................................... 24
De wangen .................................................................................................................................................... 24
De tanden en lippen ...................................................................................................................................... 25
Het primitief en definitief gehemelte ........................................................................................................... 25
De tong .......................................................................................................................................................... 26
Kieuwbogen in de laterale kopstreek............................................................................................................ 26
De slokdarm .................................................................................................................................................. 29
De magen ...................................................................................................................................................... 29
De ansa umbilicalis ........................................................................................................................................ 30
De grote klieren (lever – pancreas) ............................................................................................................... 30
Samenvatting van de ontwikkeling van de oerdarm en derivaten ............................................................... 31
Ontwikkeling van het ademhalingsstelsel ...................................................................................................... 32
De neusholte en neuskeel ............................................................................................................................. 32
De paranasale sinussen ................................................................................................................................. 32
De larynx en trachea ..................................................................................................................................... 32
Ontwikkeling van de longen .......................................................................................................................... 33
De lichaamsholtes .......................................................................................................................................... 34


2

, De evolutie van intra-embryonaal mesoderm .............................................................................................. 34
De evolutie van het hypomeer ...................................................................................................................... 34
De ontwikkleing van de pleura ...................................................................................................................... 34
Ontstaan diafragma ...................................................................................................................................... 35
Placentatie ..................................................................................................................................................... 36
Uterus ................................................................................................................................................................ 36
Implantatie ........................................................................................................................................................ 37
Placentatie ........................................................................................................................................................ 38
Opbouw van de placenta .............................................................................................................................. 38
Types placenta .............................................................................................................................................. 39
Pathologie van de placenta ........................................................................................................................... 40
Embryonale aanhangsels .................................................................................................................................. 40
Amnion .......................................................................................................................................................... 41
De navelstreng .............................................................................................................................................. 41
De ontwikkeling van het cardiovasculair- en lymfestelsel .............................................................................. 43
Het cardiovasculair stelsel................................................................................................................................. 43
De herkomst van het bloed en de bloedvaten .............................................................................................. 43
De embryonale bloedsomloop ...................................................................................................................... 44
De oorsprong van het hart ............................................................................................................................ 45
Verdere differentiatie van het hart en de aortabogen ................................................................................. 46
De inwendige ontwikkeling van het hart ...................................................................................................... 47
De verandering van pre- naar postnataal ..................................................................................................... 50
Het arterieel systeem .................................................................................................................................... 50
Het veneus systeem ...................................................................................................................................... 51
De ontwikkeling van het lymfestelsel ............................................................................................................... 51
Het bewegingsstelsel ..................................................................................................................................... 53
De chorda ...................................................................................................................................................... 53
Mesenchym ................................................................................................................................................... 53
Ontwikkeling van het skelet .......................................................................................................................... 53
De ontwikkeling van de schedel .................................................................................................................... 54
Vorming van de wervels ................................................................................................................................ 54
De ribben en het sternum ............................................................................................................................. 54
De vorming van de ledematen ...................................................................................................................... 55
Congenitale afwijkingen van het skelet ........................................................................................................ 55
De ontwikkeling van de gewrichten .............................................................................................................. 55
Congenitale afwijkingen ................................................................................................................................ 55
Ontwikkeling van de spieren ......................................................................................................................... 56

3

, Ontwikkeling van het zenuwstelsel ................................................................................................................ 58
Histogenese van het centrale zenuwstelsel .................................................................................................. 58
Vorming van het ruggenmerg ....................................................................................................................... 58
Vliezen rond het ruggenmerg ....................................................................................................................... 59
Vorming van de hersenblaasjes .................................................................................................................... 59
Differentiatie van de neurale lijstcellen ........................................................................................................ 60
Het oog .............................................................................................................................................................. 62
Structuren afkomstig van het neuroblast ..................................................................................................... 62
Structuren afkomstig van het ectoderm ....................................................................................................... 62
Structuren afkomstig van het mesoderm ..................................................................................................... 63
Het oor .............................................................................................................................................................. 63
Het inwendig oor ........................................................................................................................................... 64
Het middenoor .............................................................................................................................................. 64
Het buitenoor ................................................................................................................................................ 65
Afwijkingen.................................................................................................................................................... 65
Ontwikkeling van het urogenitaalstelsel ........................................................................................................ 66
Het urinaire stelsel ............................................................................................................................................ 67
Afvoerwegen van de urine ............................................................................................................................ 67
De urogenitale sinus...................................................................................................................................... 68
Afwijkingen van de nier ................................................................................................................................. 68
Afwijkingen van de afvoerwegen .................................................................................................................. 69
Het indifferent stadium ................................................................................................................................. 69
Differentiatie van het genitaalstelsel ............................................................................................................ 69
Indifferent stadium externe genitalia ........................................................................................................... 71
Different stadium vrouwelijk genitaal stelsel ............................................................................................... 71
Congenitale misvormingen ........................................................................................................................... 73
Different stadium mannelijk genitaal stelsel ................................................................................................ 73
Het endocrinum en de huid ............................................................................................................................ 75
Het endocrinum ................................................................................................................................................ 75
De hypofyse................................................................................................................................................... 75
De schildklier ................................................................................................................................................. 75
De bijschildklieren ......................................................................................................................................... 76
De bijnieren ................................................................................................................................................... 76
Andere endocriene cellen ............................................................................................................................. 76
Het integument ................................................................................................................................................. 76
De haren ........................................................................................................................................................ 77
De hoef, klauw, nagel en hoorn .................................................................................................................... 77

4

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