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Samenvatting Embryologie - Structuren en hun Derivaten

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Een uitgebreid en gestructureerd overzicht van alle besproken structuren en hun derivaten in de cursus embryologie binnen het vak Gastro-Intestinaal en Endocrien Stelsel Stofwisseling, gedoceerd aan Universiteit Gent door Prof. Willaert.

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Embryologie – Structuren en hun derivaten
A. De pharynxbogen, pharynxgroeven en pharynxzakjes
- Mandibula
Cartilago van Meckel (eerste - Ligamentum sphenomandibulare
pharynxboog) - Malleus
- Anterieur ligament van de malleus
Cartilogo processus maxillaris - Incus
(eerste pharynxboog) - Alisphenoid of ala major ossis sphenoidalis
N. Trigeminus
- Kauwspieren
Eerste pharynxboog - M. tensor veli palatini
- M. tensor tympani
- Venter anterior M. digastricus
- Versterkt de ontwikkelende kraakbeenderen en
bevestigt deze aan het neurocranium
Reichert cartilago (tweede - Stapes
pharynxboog) - Processus styloideus
- Cornua minora en bovenste deel corpus hyoïd
- Ligamentum stylohyoideum
N. Facialis
- Mimische spieren
Tweede pharynxboog - M. stapedius
- M. stylohyoideus
- Venter posterior M. digastricus
- Cornua majora en caudaal deel corpus hyoïd
Derde pharynxboog (endochondraal)
- Musculus stylopharyngeus
- Cartilago van de larynx
N. Vagus
- Constrictoren Pharynx
Vierde en zesde pharynxboog
- M. cricothyroideus
- M. levator veli palatini
- Binnenste larynxspieren

- Meatus acusticus externus
- Trommelvlies
Ectoderm eerste pharynxgroeve
Eerste pharynxgroeve Endoderm eerste pharynxzakje
Infiltrerende neurale lijstcellen ertussen
N. Mandibularis
- Auricula of oorschelp
Tweede, derde en vierde
- Sinus cervicalis (verdwijnt)
pharynxgroeve




1

, - Recessus tubotympanicus (endodermale laag
trommelvlies)
Eerste pharynxzakje
Cavum tympani of middenoorholte (distaal)
Tuba auditiva of buis van Eustacius (mediaal)
Tweede pharynxzakje - Fossa tonsillaris
Derde pharynxzakje – p. ventr. - Thymus- en parathyroidweefsel
- Endoderm Epitheliaal weefsel
- Crista neuralis Septa en kapsel
- Lymfocyten Cortex en medulla
- Ectoderm (3e groeve) Lichaampjes van Hassall
Derde pharynxzakje – p. dors. - Glandulae parathyroideae inferiores
Derde pharynxzakje zelf Verdwijnt volledig
Dorsale component: glandulae parathyroideae superiores
Vierde en Vijfde pharynxzakje
Ventrale component: blijft rudimentair
Corpus ultimobranchiale - Parafolliculaire of C-cellen




Ontwikkeling van het oor
Verdikt ectodermal placode ter hoogte van het
Binnenoor
rhombencephalon (oorplacode)
Eerste twee pharynxbogen, eerste pharynxgroeve en eerste
Midden- en buitenoor
pharynxzakje
Malleus en incus
Eerste pharynxboog
M. tensor tympani

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Uploaded on
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Written in
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