Principles of Anatomy and Physiology
16th Edition
ISBN: 9781119662792
Author: Tortora, Gerard J., DERRICKSON, Bryan H.
Publisher: WILEY
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Question
Chapter 24, Problem 22CP
Summary Introduction
To review:
The role of pepsin enzyme and the reason for its secretion in an inactive form.
Introduction:
The gastric glands in the stomach have many different cells like mucus-neck cells, chief cells, and the parietal cells, which secrete various enzymes involved in digestion of food. The chief cells produce pepsinogen, which is the inactive form of the enzyme pepsin.
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Chapter 24 Solutions
Principles of Anatomy and Physiology
Ch. 24 - Which components of the digestive system are GI...Ch. 24 - 2. Which organs of the digestive system come in...Ch. 24 - Which kinds of food molecules undergo chemical...Ch. 24 - Prob. 4CPCh. 24 - 5. Name the four layers of the gastrointestinal...Ch. 24 - Prob. 6CPCh. 24 - Prob. 7CPCh. 24 - Prob. 8CPCh. 24 - Prob. 9CPCh. 24 - Prob. 10CP
Ch. 24 - How are the major salivary glands distinguished on...Ch. 24 - Prob. 12CPCh. 24 - What functions do incisors, cuspids, premolars,...Ch. 24 - To which two organ systems does the pharynx...Ch. 24 - Prob. 15CPCh. 24 - Prob. 16CPCh. 24 - Prob. 17CPCh. 24 - Prob. 18CPCh. 24 - Prob. 19CPCh. 24 - 20. Compare the epithelium of the esophagus with...Ch. 24 - Prob. 21CPCh. 24 - Prob. 22CPCh. 24 - What are the functions of gastric lipase and...Ch. 24 - Prob. 24CPCh. 24 - Prob. 25CPCh. 24 - Prob. 26CPCh. 24 - Prob. 27CPCh. 24 - Prob. 28CPCh. 24 - Prob. 29CPCh. 24 - Prob. 30CPCh. 24 - Describe the major functions of the liver and...Ch. 24 - 32. List the regions of the small intestine and...Ch. 24 - Prob. 33CPCh. 24 - Describe the types of movement that occur in the...Ch. 24 - Prob. 35CPCh. 24 - What is the difference between digestion and...Ch. 24 - By what routes do absorbed nutrients reach the...Ch. 24 - 38. Describe the absorption of electrolytes,...Ch. 24 - What are the major regions of the large intestine?Ch. 24 - Prob. 40CPCh. 24 - 41. Describe the mechanical movements that occur...Ch. 24 - What is defecation, and how does it occur?Ch. 24 - Prob. 43CPCh. 24 - What is the purpose of the cephalic phase of...Ch. 24 - Prob. 45CPCh. 24 - 46. Outline the steps of the enterogastric...Ch. 24 - Prob. 47CPCh. 24 - Prob. 48CPCh. 24 - 49. What are the general effects of aging on the...Ch. 24 - Prob. 1CTQCh. 24 - Trey has cystic fibrosis, a genetic disorder that...Ch. 24 - Antonio had dinner at his favorite Italian...
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- Two substances secreted by cells of the gastric glands are needed to produce the active protein-digesting enzyme pepsin. What are these substances and which cells secrete them?arrow_forwardWhat positive feedback cycle can you identify in theformation and action of pepsin?arrow_forwardWhat are the types of lipase involved in digestion ? List their functions.arrow_forward
- What would be the significance of selectively destroying gastric vagal innervations on pepsin production?arrow_forwarddescribe the mechanical and chemical digestive process of eating a chicken sandwich. What roles do the pancreas, gallbladder, and liver play? Where is your body deriving its energy from?arrow_forwardWhy is mechanical and chemical digestion necessary prior to absorption and metabolism of nutrients?arrow_forward
- During the _____ phase of digestion, blood glucose levels drop and our body must depend on stored energy. The sympathetic nervous system directs the pancreas to release glucagon, which causes glycogen to be transformed back into glucose. Glucagon also causes stored fat and glycogen to be released into the bloodstream. A) fasting B) exhaustion C) resistencearrow_forwardHow is Pepsin Secreted?arrow_forwardHow does gastrointestinal tract evade dehydration? 1) Alternating wave-like contraction and relaxatio of the oral (mouth) muscles reabsorbs water which will be transported to the urinary system 2) water is an important digestive enzyme in the stomach. 3) Normal peristaltic movements in the large intestine ensure reabsorption of water that will be delivered to the circulatory system. 4) the water we drink will be mostly absord by the blood vessels attached to the esophagus and stomach. Skip questionarrow_forward
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