NUTR 200 Lecture Notes - Lecture 6: Maltase, Short-Chain Fatty Acid, Chyme
Document Summary
Deine digesion and absorpion and highlight the diferences between the two processes. Name and locate all of the organs involved in digesion and absorpion. Name hormones and enzymes required to digest food and their origin and acion. Name the cell types involved in absorpion and the 2 types of circulaion that transport absorbed nutrients. Cephalic phase = first thought of food (nervous system) simulates the release of digesive juices. Mouth - mechanical disrupion of food (chewing) - moistens the food and mechanically breaks it into smaller pieces. Bolus = the mass of chewed food mixed with saliva. Swallowing = moving food into esophagus from the mouth. Peristalsis = wavelike muscular contracion and relaxaion that propels food forward though the gi tract. Gastrin hormone produced when food present in stomach. Pancreaic secreions (bicarbonate and digesive enzymes) enter the duodenum via the common bile duct.
