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The Digestive System

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