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Seeley
Essentials of Anatomy and Physiology
6th Edition
Chapter 16
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Question 1
The layer of the wall of the digestive tract that contains
blood vessels, small glands, and a nerve plexus is the
A. mucosa layer.
B. submucosa layer.
C. muscularis layer.
D. serosa (adventitia) layer.
Question 2
The frenulum is part of the
A. esophagus.
B. muscles of mastication.
C. lips.
D. teeth.
E. tongue.
Question 3
The largest pair of salivary glands is the
A. laryngeal glands.
B. parotid glands.
C. pharyngeal glands.
D. sublingual glands.
E. submandibular glands.
Question 4
Adults normally have ______ permanent teeth; children
have ______ deciduous, or primary teeth.
A. 36,36
B. 32,32
C. 32,20
D. 20,32
E. 20,20
Question 5
The center of the tooth, which is filled with blood vessels,
nerves, and connective tissue, is called
A. gingiva.
B. pulp.
C. cementum.
D. dentin.
E. enamel.
Question 6
The muscular layer of the stomach is different than the
rest of the digestive tract because
A. it has one layer of smooth muscle.
B. it has two layers of smooth muscle.
C. it has three layers of smooth muscle.
D. it has four layers of smooth muscle.
E. it has no smooth muscle, only elastic tissue.
Question 7
Parietal cells in the lining of the stomach produce
A. regulatory hormones.
B. pepsinogen.
C. HCl and intrinsic factor.
D. mucus.
E. bicarbonate ions.
Question 8
Which of these cells in the lining of the duodenum
produce digestive enzymes?
A. absorptive cells
B. goblet cells
C. granular cells
D. endocrine cells
E. lacteal cells
Question 9
Given these sphincters: 1. external anal sphincter 2.
ileocecal sphincter 3. lower esophageal sphincter 4.
pyloric sphincter, arrange them in the order in which
food passes through them.
A. 1,3,2,4
B. 2,3,4,1
C. 2,1,3,4
D. 3,4,2,1
E. 4,2,1,3
Question 10
The mesentery that connects the greater curvature of the
stomach to the transverse colon and posterior body
wall is the
A. greater omentum
B. lesser omentum.
C. omental bursa.
D. mesentery proper.
E. parietal peritoneum.
Question 11
Saliva
A. secretion is increased primarily by sympathetic
stimulation.
B. contains amylase, which digests cellulose.
C. contains lysozyme, which has a weak antibacterial
action.
D. contains pepsin, which digests protein.
E. all of these
Question 12
In which phase of stomach secretion does the greatest
amount of secretion take place?
A. cephalic phase
B. gastric phase
C. intestinal phase
D. colic phase
Question 13
Gastrin secretion is stimulated by
A. duodenal pH greater than 3.
B. secretin.
C. cholecystokinin.
D. gastric inhibitory polypeptide.
E. all of these
Question 14
The ______ secretes peptidases and disaccharidases,
whereas the _______ secretes trypsin, chymotrypsin,
amylase, lipase, and nuclease.
A. stomach, liver
B. stomach, small intestine
C. liver, small intestine
D. liver, pancreas
E. small intestine, pancreas
Question 15
Given these events: 1. protein-coated triacylglycerols enter lacteals 2.
triacylglycerol coated with protein 3. fatty acids and glycerol
packaged into micelles 4. bile salts emulsify fats 5. lipase digests
fat, arrange these events in the order in which they occur during
fat digestion, absorption, and transport.
A. 1,2,4,5,3
B. 2,5,4,3,1
C. 3,5,4,1,2
D. 4,5,3,2,1
E. 5,3,4,1,2
Question 16
The serosa is the same as the
A. visceral pleura.
B. parietal pleura.
C. visceral peritoneum.
D. parietal peritoneum.
E. visceral pericardium.
Question 17
Initial chemical digestion of proteins occurs in the ______
by the digestive secretion _______.
A. mouth; amylase
B. mouth; lipase
C. stomach; hydrochloric acid
D. stomach; pepsin
E. small intestine; trypsin
Question 18
In __________ there are alternating waves of contraction
and relaxation in the inner circular and outer
longitudinal muscles of the muscular layer of the
digestive tract to propel substances through the hollow
tract.
A. mastication
B. peristalsis
C. deglutition
D. emulsification
E. defecation
Answer Key
1. B
2. E
3. B
4. C
5. B
6. C
7. C
8. A
9. D
10. A
11. C
12. B
13. A
14. E
15. D
16. C
17. D
18. B