NURS 8022 Chapter 35: Structure and Function of the Digestive System

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1. Digestion begins in the mouth with salivary -amylase (ptyalin) that initiates the digestion of: a. proteins. b. carbohydrates. c. fats. d. amino acids. ANS: B Salivary amylase initiates th... e digestion of carbohydrates. Protein digestion occurs in the stomach and is influenced by pepsin. Fat digestion is aided by bile. Amino acids are not involved in the digestive process. REF: p. 886 2. When parasympathetic nervous system activity is inhibited what is the expected effect on salivary glands? a. Hyperactive function b. Hypoactive function c. Atrophy d. Enlargement ANS: B Inhibition of the parasympathetic nervous system would result in decreased (hypoactive) functions of the salivary glands. The individual would experience dry mouth. Inhibition of the parasympathetic nervous system would not result in hyperactivity, atrophy, or enlargement of the salivary glands. REF: p. 886 3. Which immunoglobulin is found in normal saliva? a. IgG b. IgD c. IgE d. IgA ANS: D Normal saliva contains IgA. Normal saliva does not contain IgG, IgD, or IgE. REF: p. 886 4. Food is moved down the esophagus via what process? a. Peristalsis b. Retropulsion c. Haustral segmentation d. Defecation [Show More]

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