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The Digestive System

46 Questions  I  By Dru31988
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Digestive System Quizzes & Trivia
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1.  Infants have ________________ deciduous teeth, whereas adults have ________________ permanent teeth. 
A.
B.
C.
D.
E.
2.  Lecithin prepares fats for hydrolysis by forming 
A.
B.
C.
D.
E.
3.  _____________ is associated with food stretching the stomach and activating myenteric and vagovagal reflexes, which in turn stimulate gastric secretions. 
A.
B.
C.
D.
E.
4.  ____________ transport lipids to the surface of the intestinal absorptive cells, which process them into _________________. 
A.
B.
C.
D.
E.
5.  Each of the following lists some of the tissue layers of the digestive tract. Which one has them in correct order from lumen to external surface? 
A.
B.
C.
D.
E.
6.  The swallowing center is located in
A.
B.
C.
D.
E.
7.  The sodium-glucose trasnsport protein (SGLP)
A.
B.
C.
D.
E.
8.  The surface of the tongue is covered with ____________ stratified squamous epithelium, and has bumps called __________________, site of taste buds. 
A.
B.
C.
D.
E.
9.  The organ that stores excess glucose and releases it later into the blood is 
A.
B.
C.
D.
E.
10.  Why are several digestive enzymes secreted as zymogens? 
A.
B.
C.
D.
E.
11.   The small intestine is suspended from the abdominal wall by 
A.
B.
C.
D.
E.
12.  Which of these nutrients is absorbed by the lacteals of the small intestine? 
A.
B.
C.
D.
E.
13.  Proteins are digested by different enzymes acting in the following sequence 
A.
B.
C.
D.
E.
14.  The small intestine has a very large absorptive surface associated with all these structures except 
A.
B.
C.
D.
E.
15.  These nutrients are all absorbed without being digested except 
A.
B.
C.
D.
E.
16.   The serous membranes that suspend the stomach and intestines from the abdominal wall are called 
A.
B.
C.
D.
E.
17.  The ______________ gland is an extrinsic salivary gland; whereas the ______________ gland is an intrinsic salivary gland. 
A.
B.
C.
D.
E.
18.  The migrating motor complex 
A.
B.
C.
D.
E.
19.  Bacterial flora carry out all of the following except 
A.
B.
C.
D.
E.
20.  These are all accessory organ of the digestive system except 
A.
B.
C.
D.
E.
21.  . The buccal phase of swallowing is under _____________ control and the pharyngo-esophageal phase is ______________. 
A.
B.
C.
D.
E.
22.  ____________ is the physiological process that moves a nutrient from the outside to the inside of the body. 
A.
B.
C.
D.
E.
23.  Pancreatic enzymes are secreted in response to the hormone 
A.
B.
C.
D.
E.
24.  The enterogastric reflex serves to 
A.
B.
C.
D.
E.
25.  These are normally found in saliva except 
A.
B.
C.
D.
E.
26.  Which of these is not a component of the pancreatic juice? 
A.
B.
C.
D.
E.
27.  Which of the following enzymes functions at the lowest pH?  
A.
B.
C.
D.
E.
28.  The ___________ regulates digestive tract motility, secretion, and blood flow and its neurons are found in the ____________. 
A.
B.
C.
D.
E.
29.   Defecation is stimulated by 
A.
B.
C.
D.
E.
30.  The three most abundant classes of nutrients are 
A.
B.
C.
D.
E.
31.  Carbohydrate digestion begins in the ______________, whereas protein digestion begins in the ______________. 
A.
B.
C.
D.
E.
32.  The muscle tone of the ________________ along the colon contracts it lengthwise, causing its walls to bulge and form pouches called _______________. 
A.
B.
C.
D.
E.
33.  Amino acids and monosaccharides are absorbed in the ____________, and fatty acids are absorbed in the _______________. 
A.
B.
C.
D.
E.
34.  ____________, which is secreted by ___________ cells, is necessary for Vitamin B12 absorption. 
A.
B.
C.
D.
E.
35.  . ______________ is a hormone, whereas ________________ is an enzyme. 
A.
B.
C.
D.
E.
36.  A hepatic triad consists of 
A.
B.
C.
D.
E.
37.  From superficial to deep, these are the structures found in a typical tooth. 
A.
B.
C.
D.
E.
38.  Acid reflux into the esophagus ("heartburn") is normally prevented by 
A.
B.
C.
D.
E.
39.  Hydrochloric acid (HCl) is secreted by ____________ cells. 
A.
B.
C.
D.
E.
40.  Chemical digestion breaks down _____________ into __________________.
A.
B.
C.
D.
E.
41.  Pepsinogen is produced by ____________ and is activated by ___________. 
A.
B.
C.
D.
E.
42.  The _______________ synthesizes bile acids by metabolizing ____________________. 
A.
B.
C.
D.
E.
43.  The ______________ of the small intestine is/are similar to the _________________ of the stomach. 
A.
B.
C.
D.
E.
44.  Bacteria constitute about __________% of the dry weight of the feces
A.
B.
C.
D.
E.
45.  Which of these is the site of contact digestion? 
A.
B.
C.
D.
E.
46.  Of the following components of bile, only _____________ has/have a digestive function. 
A.
B.
C.
D.
E.
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