anatomy and physiology 21) The sheets of peritoneal membrane that hold the diges
ID: 276997 • Letter: A
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anatomy and physiology
21) The sheets of peritoneal membrane that hold the digestive tract in place are called 21) A) lamina propria C) serosal lining D) mucosal lining 22) From the esophagus to the anal canal, the walls of every organ of the alimentary canal are made up 22) of the same four basic layers Arrange them in order from the lumen. serosa, mucosa, and submucosa A) muscularis externa, B) submucosa, serosa, muscularis extema, and mucosa C) serosa, mucosa, submucosa, and muscularis externa D) mucosa, submucosa, muscularis exterma, and serosa 23) 23) What part of the tooth bears the force of chewing? A) cementum B) crown C) enamel D) pulp 24) 24) Which hormone causes an increased output of enzyme-rich pancreatic juice and stimulates allbladder contraction to release bile? A) secretin C) gastric inhibitor peptide B) cholecystokinin D) gastrin 25) 25) Which of the following is not true of saliva? A) cleanses the mouth B) dissolves food chemicals so they can be tasted C) contains enzymes that begin the breakdown of proteins D) moistens food and aids in compacting of the bolus 26) 26) Hydrochloric acid is secreted by which of the secretory cells of the stomach? A) chief cells C) parietal cells B) serous cells D) mucous neck cells 27) Peristaltic waves are A) segmental regions of the gastrointestinal tract B) churning movements of the gastrointestinal tract C) waves of muscular contractions that propel contents from one point to another D) pendular movements of the gastrointestinal tract 28) 28) Pepsinogen, a digestive enzyme, is secreted by the A) Brunner's glands C) chief cells of the stomach B) goblet cells of the small intestine D) parietal cells of the duodenum 29) 29) The ducts that deliver bile and pancreatic juice from the liver and pancreas, respectively, unite to form the B) portal vein A) pancreatic acini C) bile canaliculus 30) Hepatocytes do mot 30) A) store fat-soluble vitamins C) produce digestive enzymes B) process nutrients D) detoxify 31) 31) Which vitamin requires intrinsic factor in order to be absorbed? B) K A) A C) B12 D) CExplanation / Answer
21. Mesenteries hold the digestive tract in there place when person is physically active. Option B is correct.
22. Mucosa, submucosa, muscularis and serosa are the arrangement of layer of digestive tract. Option D is correct.
23. Crown is involved in chewing force applied on food. Option B is correct.
24. Cholecytokinin is hormone which stimulate gallbladder to secreate the bile.
25. It moisten food and make compact bolus to swallow easily. Option D is correct.
26. Parietal cells of stomach secreates the HCl acid which causes chemical digestion of food. Option C is correct.
27. These are waves of muscular contraction which allow movement of the content. Option C is correct.
28. Chief cells secreate the pepsinogen and its active form pepsin is involved in protein digestion. Option C is correct.
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