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Digestive_Physiology_Study_Questions - Digestive Physiology...

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Digestive Physiology Study Questions (select the single BEST answer) 1. Digestion makes larger molecules from smaller molecules. A) true B) false 2. The conditions within the lumen of the digestive tract can be too harsh for the rest of the body. A) true B) false 3. Which of the following is matched with its unit that can be absorbed (or absorbable unit)? A) protein – fatty acid B) carbohydrate – monoglyceride C) fat – monosaccharide D) protein – amino acid E) carbohydrate – amino acid 4. The enteric nervous system includes the A) myenteric plexus B) submucosal (or submucous) plexus C) both A and B D) neither A nor B 5. Which of the following is an accessory digestive gland? A) pancreas B) salivary gland C) liver D) A and B E) A, B, and C 6. A intratract or short reflex _______________ involve autonomic neurons. A) would B) would not 7. It ________ possible for a person to swallow food while standing on their head (or upside down). A) is B) is not 8. Which of the following normally occurs during the oropharyngeal stage of swallowing? A) vocal cords come together (close the opening between them) B) inhibition of respiration C) both A and B D) neither A nor B 9. Saliva contains a carbohydrate digesting enzyme. A) true B) false 10. Heartburn occurs when ________ contents move into the __________. A) stomach, esophagus B) esophagus, stomach C) stomach, duodenum D) duodenum, stomach 11. Peristaltic waves are strongest in the ____________of the stomach (where the muscle layer is thickest and the most mixing of chyme occurs). A) body B) fundus C) antrum 12. Parietal cells secrete A) amylase B) pepsinogen C) chymotrypsin D) HCl E) B and D 13. Gastrin is a hormone secreted by cells in the antrum of the stomach which causes HCl secretion from cells in the body of the stomach. A) true B) false 14. Intrinsic factor is A) needed for enzyme activation B) an enzyme C) needed for absorption of all vitamins D) needed for absorption of vitamin B 12 E) none of these 15. All of the following decrease stomach emptying EXCEPT A) increased enterogasterones B) increased fats in the duodenum C) increased distension of the duodenum D) increased distension of the stomach 16. Which of the following enters the lumen of the small intestine? A) gastric contents B) pancreas exocrine secretions C) bile D) A and C E) A, B, and C
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17. Enterokinase (or enteropeptidase) which activates trypsinogen is A) secreted from the pancreas B) secreted from cells in the stomach C) located on intestinal mucosal cells (epithelial cells) D) in saliva E) none of these 18. Increased fatty acids in the duodenum causes __________ secretion of CCK, which causes ________ of the gall bladder. A) increased, contraction B) increased, relaxation C) decreased, relaxation D) decreased, contraction 19. The pancreas secretes A) amylase B) trypsinogen C) both A and B D) neither A nor B 20. Bile salts are absorbed from the small intestine and can then be secreted again by the liver. A) true
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Digestive_Physiology_Study_Questions - Digestive Physiology...

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