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Samenvatting anatomie 1, hoofdstuk 2 $4.89   Add to cart

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Samenvatting anatomie 1, hoofdstuk 2

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Dit is de samenvatting van het 2e hoofdstuk uit het vak anatomie 1.

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  • December 7, 2022
  • 7
  • 2019/2020
  • Summary
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HET INTEGRUMENT
1. De huid
A. Functie
 Mechanische, beschermende barrière + immuunsysteem
 Voorkomt uitdrogen
 Thermoregulatie
 Sensorische functie
 Aanmaak vitamine D  Te kort  botproblemen
 Leverancier: haar, nagels, hoorn en eeltlagen

B. Bouw
 3 lagen
o Epidermis = Opperhuid
 Basale laag:
- 1 laag cellen
- keratinisatie (= verhoornen van afgestorven cellen)
 Stratum spinosum:
- cilindrisch  kubisch
- 2-4 lagen cellen
- synthese keratine  hoornlaag
 Stratum granolosum
- opnemen keratinekorrels
- cellen worden stug  celactiviteit stopt  kern verdwijnt  plat
 Stratum lucidum
- transparante band
 Stratum corneum = hoornlaag
- stevige en moeilijk doordringbare laag
- 20 tot 100 cellagen
- cel verliest kleeflaag en komt los van huid
o Dermis = Het Leven = Lederhuid = bindweefsellaag
 Onderste laag:
- collageenvezels  mechanisch beschermende laag
 Bovenste laag:
- bloedvaten, lymfevaten, zenuwen ,haarfollikels, huidklieren,
lederhuidpapillen
- oppervlaktevergroting  oppervlaktevoeding
o Subcutis = hypodermis = onderhuid
 Los bindweefsel  beweeglijkheid
 Vetweefsel, bloedvaten en zenuwen  subcutane injecties

, B. De haren = Pili
 Dekharen
o Opvallende haartype
o Bepaald lengte en kleur
o Ondervacht: primaire, secundaire en bijharen
 Wolharen
o Fijnere, eerder golvende structuur
o Onder de dekharen
o Wintevacht
 Borstelharen
o Stugge haren
o Meervoudige haarpunten
o Dominante type
 Lange haren
o Lange, elastische, glanzende haren
o Blesharen
o Manen
o Spoorharen
o Baardhalen
 Wimpers
o Op de oogleden
 Neusharen
o In de neusholte
 Oorharen
o In de uitwendige gehoorgang
 Tastharen
o Lange stijve haren
o Wortel wat veneuze sinus (= kluwe bloedvaatjes)
o Zenuwuiteinden (= gevoelszenuw)
o Op kop
o Haarwervels
o Haarlijnen
o Haarlijnkruisen

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