Pepsinogen diff 3 page ref 575 answers 18 b 19 d 20 b

22) Pepsinogen.
Diff: 3 Page Ref: 575
Answers: 18) B 19) D 20) B 21) A 22) C
30

Match the organ to the corresponding structure.
A) stomach
B) small intestine
C) pancreas
D) liver
23) Rugae.
Diff: 4 Page Ref: 575
24) Crypts of Lieberkuhn.
Diff: 5 Page Ref: 577
25) Gastric pits.
Diff: 3 Page Ref: 575
26) Brush border.
Diff: 4 Page Ref: 576
27) Sinusoids.
Diff: 4 Page Ref: 581
28) Islets of Langerhans.
Diff: 3 Page Ref: 579
29) Acini.
Diff: 3 Page Ref: 579
30) Bile canaliculi.
Diff: 4 Page Ref: 581
31

Match the enzyme with its substrate.
31) Polysaccharides.
Diff: 4 Page Ref: 582
32) Sucrose.
Diff: 2 Page Ref: 582
33) Straight-chain glucose polymers.
Diff: 3 Page Ref: 582
34) Proteins.
Diff: 4 Page Ref: 584
35) Lipids.
Diff: 3 Page Ref: 584
Match the hormone with its function.
36) Stimulates gastric secretion and motility.
Diff: 4 Page Ref: 593
37) Simulates pancreatic bicarbonate secretion (and enzyme secretion to a lesser extent).
Diff: 4 Page Ref: 594
38) Stimulates gall bladder contraction.
Diff: 4 Page Ref: 594
39) Inhibits gastric secretion and motility in response to distension of the duodenum.
Diff: 5 Page Ref: 594
40) Stimulates relaxation of the sphincter of Oddi.
Diff: 4 Page Ref: 595
Answers: 36) B 37) D 38) C 39) A 40) C
32

20.4 Essay Questions
1) The function of each region of the digestive tract is dependent upon its structure. Describe the
general structures of the digestive tract wall, including the unique cells within the structures that
provide specialized functions.