ANP 1107 Lecture Notes - Lecture 5: Hemoglobin, Hepatocyte, Sphincter Of Oddi

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1107
• Professor: Jacqueline Carnegie

Document Summary

1. 3 describe the region-specific digestive activities of the gi tract and their regulation. Describe the digestive functions of the stomach and their regulation. Regulation of gastric secretion: controlled by neural (long and short nerve reflexes) and hormonal (gastrin secreted by g cells stimulates secretion of pepsinogen and hydrochloric acid) mechanisms. Stimuli at 3 different sites: cephalic occurs before the food enters the stomach and is a short-lived phase. It is activated by the olfactory/taste bud inputs and visual/conscious thought inputs: gastric distension has mechanical receptors which are local and long. 1. 3. 6 summarize the digestive roles of the liver and gallbladder, and their regulation. Gallbladder: gallbladder is the storage for bile and contracts to release bile when required, bile is a fat emulsifier and it is required since fat is not water-soluble. Therefore, there will be less surface area (fats need to be broken down into smaller droplets by the bile salts)