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Enzymen vertering
Antistoffen, lysozymen ziektekiemen doden
Slikken ong. 9 sec.
1. Bolus (water) tegen harde gehemelte, tong trekt terug, bolus wordt pharynx (keelholte)
ingeduwd, zachte gehemelte omhoog.
2. Strottenhoofd komt omhoog, epiglottis (strottenklepje) sluit glottis (stemspleet). Niet
verslikken.
3. Bolus komt oesophagus (slokdarm) binnen, peristaltische concentraties, onderste kringspier
laat bolus door.
4. Bolus komt maag binnen. Onderste oesophagus sfincter sluit.
Braken (emesis) Chemische (voedselvergiftiging) of mechanische irritatie (vinger in de keel)
Zachte gehemelte, pharynx, oesophagus, maag en begin dunne darm zijn gevoelig.
Braakcentrum verlengde merg.
1. Meer klierproductie – slijm. Doel spijsverteringkanaal beschermen.
2. Pylorissfincter (klierspier tussen twaalfvingerige darm en maag) ontspant
3. Peristaltische golven en krachtige uitademing (hogere druk)
4. Inhoud duodenum en begin jejunum naar maag gestuwd.
5. Maaginhoud wordt naar buiten gestuwd
6. Toegang naar de neusholte geblokkeerd.
Visceraal peritonium Bekleed organen
Pariëtaal peritoneum bekleed buikholte
Mesenteria dubbele laag van visceraal peritonium om de darmen heen.
Omentum minus vlak bovenop de darmen
Mentum majus
Dunne darm
Belangrijkste voor resorptie van voedingsstoffen
Ongeveer 6 meter
Duodenum
Jejunum
Ileum (langste stuk)
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