Section 4 Review Questions 08-30-07

Section 4 Review - Human Physiology(KINE 301 Test 4 Review Questions 1 What is the function of the GI tract 2 Name the four basic processes of the

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Human Physiology (KINE 301) Test 4 — Review Questions 1. What is the function of the GI tract? 2. Name the four basic processes of the digestive system. 3. Define digestion, absorption, and motility. What are the two components of secretion? 4. What is GALT? How does it serve a peripheral function of the digestive system? 5. Name the three pairs of salivary glands. 6. What makes up chyme? 7. What structure connects the mouth to the stomach? Name the three sections of the stomach. 8. The stomach joins the small intestine at the __________________________. Name the three sections of the small intestine. 9. The intestinal enzymes are aided by exocrine secretions from two accessory glandular organs. Name them. 10. What structure prevents pancreatic fluid and bile from entering the small intestine except during a meal? 11. Name the four layers of the gut wall (GI tract wall). 12. Name the three parts of the mucosa. 13. Crumpled folds of the gut wall are called _______________ in the stomach and _____________________ in the small intestine. 14. The plicae project into the lumen in small fingerlike extensions known as _________________. Each of these structures increase their absorptive surface with ________________________. 15. Tubular invaginations are called _______________________ in the stomach and ________________ in the intestine. 16. What is the lamina propria? 17. What are Peyer's patches? 18. What part of the enteric nervous system lies in the submucosa and plays a major role in coordinating digestive function? 19. Describe the structure of the muscularis externa. It contains the second nerve network of the enteric nervous system called the __________________________. 20. What is the structure and location of the serosa? What is it a continuation of? 21. What are tonic and phasic contractions of GI smooth muscle? When a slow wave potential reaches threshold, what type of voltage-gated channels open? 22. What are interstitial cells of Cajal? 23. Briefly describe migrating motor complex, peristaltic contraction, and segmental contractions. What is irritable bowel syndrome? 24. What is mucus comprised of, and what is its function? Give the name of the cells which secrete mucus in the stomach vs. the intestine. 25. What is the major purpose of bile? 26. What is the function of amylase in carbohydrate metabolism? 27. What are the roles of endopeptidases and exopeptidases in digestion of proteins? 28. Because triglycerides in our diet form large clumps in aqueous chyme solution, fat digestion must be aided by _____________________________________________________. Last updated 8/30/2007
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29. The enteric nerve plexus is referred to as the "little brain". The effect of emotional distress on GI tract function is evidence of the link between this plexus and the ___________________. 30. What are short reflexes and long reflexes? Name the location of the myenteric plexus.
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This note was uploaded on 08/21/2008 for the course KINE 301 taught by Professor Gibson during the Spring '08 term at Rice.

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Section 4 Review - Human Physiology(KINE 301 Test 4 Review Questions 1 What is the function of the GI tract 2 Name the four basic processes of the

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