ANSC 3120 Lecture Notes - Foregut, Coprophagia, Blood Sugar

• School: University of Guelph
• Department: Animal Science
• Course: ANSC 3120
• Professor: c

Document Summary

Ileum: caecum, large intestine, rectum, anus. Human, monkey, pig, dog (omnivores), cat (carnivore: mongastric single stomach , require rich nutrient diet due to nature of the gi tract, the caecum only contribute 1% 2% of fermentation capacity. May provide a reservoir of bacteria to reseed colon. Mouth: chewing, saliva: salivary amylase, structure suited to diet, starch is digested to glucose (sweet!) Esophagus: smooth muscle: ~ 10sec to swallow bolus of food. Stomach: secretions: hcl; lowers ph to ~ 2. Chocolate and smoking can cause the sphincter to relax. Pepsinogen pepsin protein digestion: mucus/bicarbonate. Protect epithelium: gastrin, cholecystokinin (cck), other regulatory peptides. Control motility, sphincters and secretions: intrinsic factor (for vitamin b12) Semifluid mass of acidic partly digested food expelled by the stomach into the duodenum. Small intestine: secretions: bicarbonate (hco3), increases the ph to 8-9, secretions from pancreas and gall bladder (bile, pancreas is very important in digestion. Pancreatic secretions also include are also alkaline various enzymes involved in.