Physiology 2130 Lecture 9: Gastrointestinal Physiology
16 Aug 2017
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Document Summary
Describe the four processes of the digestive system. Label the anatomy of the gastrointestinal tract. Label the anatomy of the upper gastrointestinal tract. List and describe the 3 stages of swallowing. List and describe he layers of the stomach. Explain the different functions of acid in the stomach. List and describe the three regions of the small intestine. List and describe the layers of the small intestine. List the cell types of the intestinal wall and their function. List the brush border enzymes and what the digest. Label the anatomy of the large intestine. Describe the motility in the large intestine. Secretion: exocrine into lumen of digestive tract, endocrine into bloodstream. Digestion: chemical (amylase and lipase) enzymes break items into smaller pieces, mechanical physically grind food into smaller pieces. Motility: propels food through each segment of the tract, can participate in mechanical digestion. Absorption: movement of macronutrients into cells of the digestive tract and then into blood.
