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Samenvatting Basis Diervoeding - Het Spijsverteringsstelsel

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Dit is de samenvatting van het deel spijsverteringsstelsel.

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HET SPIJSVERTERINGSSTELSEL

a) Algemene inleiding


Enzymatische vertering

vertering
Microbiële vertering door bacteriën




b) Algemene bouw van het spijsverteringsstelsel
 Mondholte
 Pharynx
 Oesophagus = slokdarm
 Maag of magenstelsel
 Duodenum = 12-vingerige darm
 Jejunum en ileum = nuchtere darm en kronkeldarm
 Caecum = blinde darm
 Colon = karteldarm
 Rectum = endeldarm

Enzymproductie:
 Speekselklieren
 Lever met galblaas
 Alvleesklier

Opbouw in lagen:
 Tunica mucose
o Epithelium
o Lamina propria
o Lamina muscularis mucosa
 Tunica submucosa
 Tunica muscularis
o Lamina muscularis interna
o Lamina muscularis externa
 Tunica serosa

, c) De verschillende onderdelen van een spijsverteringsstelsel
d) Mondholte
 Functie:
o Voederopname
o Mechanische voorbereiding
o Smaakpapillen
 Speekselklieren:
o Water
o Amylase  zetmeelvertering
o Bicarbonaat  buffer

e) Slokdarm
 Transport: peristaltiek of omgekeerde peristaltiek
 Zeer rekbaar
 Spieren en slijmklieren

f) Maag of maagstelsel
 HCl  zuurbarrière
o Doden van bacteriën
o Denaturatie: afbreken van voedsel
o Pepsinogeen  pepsine

g) Dunne darm
 Duodenum, jejunum, ilium
 Eigenlijke vertering  enzymatische vertering

h) Dikke darm
 Caecum, colon, rectum
 Resorberen van vocht
 Microbiële vertering
o Fermentatie ruwe celstof
o Onvolledige vertering eiwitten
o Vorming vitamines

i) Lever en gal
 Galzouten
 Emulgeren van vet

j) Pancreas
 Trypsine, carboxypeptidase  omzetten eiwitten naar kleine peptiden
 Chymotrypsine
 Aminopeptidase  omzetten polypeptiden naar dipeptiden en aminozuren
 Amylase  omzetten zetmeel en glycogeen naar maltose
 Lipase  omzetten vetten naar vetzuren en glycerol

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Uploaded on
December 7, 2022
Number of pages
7
Written in
2019/2020
Type
SUMMARY

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