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Anatomie Keypoints (Hoofdstuk 5: De huid)
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Anatomie Keypoints (Hoofdstuk 5: De huid)
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KEYPOINTS H51 Twee verschillende lagen van de huid verdere
onderverdeling van superficieel profundus.
1. Stratum papilare (papillaire laag)
2. Stratum retculaire (reticulaire laag)
2 functie van de epidermis & dermis adhv hun
anatomische bouw.
- Bedekken van het lichaam ( biedt stevigheid en bescherming)
EPIDERMIS Eigenschappen
Stratum corneum - Verschillende lagen afgevlakte, dode, onderling
vergrendelde keratinocyten
- Waterbestendig, maar niet waterdicht
Stratum lucidum - Uiterlijk van een glasachtige laag, alleen in dikke huid
Stratum - Keratinocyten vormen keratine (hoornstof)
granulosum - Keratinevezels ontwikkelen zich naar mate cellen dunner
en vlakker worden
- Geleidelijk verdikken de plasmamembranen zich, de
organellen vallen uiteen en de cellen sterven af
Stratum spinosum - Keratinocyten zijn onderling door desmosomen verbonden
Stratum basale - Diepste, basale laag
- Hechting aan basaal membraan
- Bevat basale cellen (stamcellen), melanocyten en
tastcellen ( merkelcellen)
1
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