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GI Tract - self assessment questions back to the teaching materials

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NOTE: These questions have one and only one correct answer

Q1. Trypsin is

(a) An enterogatrone released in response to gluconse in the small intestine
(b) A pancreatic proteolytic enzyme
(c) A new club drug
(d) active at low pH
(e) The main proteolytic enzyme released in the stomach

   



Q2. The organ of greatest importance in providing enzymes required for the digestion of food is the:

(a) parotid salivary gland
(b) stomach
(c) pancreas
(d) liver
(e) small intestine

   



Q3. A hormone that stimulates secretion by the gastric parietal cells is:

(a) gastrin
(b) pepsin
(c) gastric inhibitory peptide
(d) secretin
(e) histamine

   



Q4. The cephalic phase of gastric secretion will be ELIMINATED by:

(a) surgical removal of the gastric antrum
(b) denervation of the gastric antrum
(c) denervation of the fundus and body of the stomach
(d) none of the above
(e) Drugs that block histamine type 2 receptors

   



Q5. In the stomach:

(a) receptive relaxation in response to gastric filling is partly mediated by the vagus nerves.
(b) strong gastric contraction begin in the middle of the fundus, travel toward the antrum, and gain in strength as they travel.
(c) the frequency of slow waves is about 8/min.
(d) secretin and cholecystokinin (CCK) enhance the force of smooth muscle contraction.
(e) contractions of the gastric smooth muscle do not occur in the absence of action potentials

   





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Copyright © 1998 University of Bristol. All rights reserved.
Author: Phil Langton 		Last modified: 10 Jun 1999 19:40
Authored in CALnet