A&P Exam 4

53 cards

Test 4. Study your ass off


 
  
Created May 2, 2012
by
powella6

 

 
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  Side A   Side B
1
The digestive system processes food, extracts nutrients, and eliminates the residue T or F?
 
True
2
The enteric nervous system regulates much of the digestive activity but it action depends on...
 
False
3
Odor, sight, and taste stimulate salivatory nuclei in the cerebral cortex T or F?
 
True
4
Both chemical and mechanical digestion start in the mouth and continue in the stomach T or...
 
True
5
Gastric juice consists entirely of water and hydrochloric acid T or F?
 
False
6
Absorption of many nutrients starts in the stomachT or F?
 
False
7
The liver is the body's largest gland T or F?
 
True
8
Both pancreatic juice and bile are secreted into the duodenum T or F?
 
True
9
The small intestine begins with the duodenum which is its longest segment T or F?
 
False
10
The brush borders of intestinal absorptive cells contain numerous goblet cells T or F?
 
False
11
Most fat is digested by pancreatic lipase T or F?
 
True
12
Chylomicrons are secreted from the basal surface of the absorptive cells and taken into the...
 
True
13
The large intestine is longer than the small intestine T or F?
 
False
14
? is the physiological process that moves a nutrient from the outside to the inside of the...
 
D. absoption
15
The serous membranes that suspend the stomach and intestine from the abdominal wall are calledA....
 
A. mesenteries
16
free
 
free
17
These are all accessory organs of the digestive system EXCEPT A. tongueB. liverC. pancreasD....
 
A. tongue
18
Each of the following lists some of the tissue layers of the digestive tract. Which one has...
 
E. mucosa, submucosa, muscularis externa, lamina propria, serosa
19
Chemical digestion breaks down ? into ?A. proteins; nucleotidesB. amino acids; proteinsC. polysccharides;...
 
D. nucleic acids; nucleotides
20
The ? regulates digestive tract motility, secretion, and blood flow, and its neurons are found...
 
C. enteric nervous system; submucosa and muscularis externa
21
These are normally found in saliva EXCEPTA. mucusB. lysozymeC. amylaseD. lipaseE. protease
 
E. protease
22
The ? gland is an extrinsic salivary gland, whereas the ? gland in and intrinsic salivary...
 
B. submandibular, lingual
23
The swallowing center is located in the A. mouthB. oropharynxC. esophagusD. medulla oblongataE....
 
D. medulla oblongata
24
The buccal phase of swalloing is under ? control and the pharyngo-esophageal phase is ?A. central...
 
B. central nervous system; controlled by autonomic reflexes
25
Acid reflux into the esophagus is normally prevented byA. pharyngeal constrictorsB. the upper...
 
C. the lower esophageal sphincters
26
free
 
free
27
Hydrochloric acid is secreted by ? cellsA. mucousB. regenerative (stem)C. parietalD. chiefE....
 
C. parietal
28
?, which is secreted by ? cells, is necessary for vitamin B12 absorptionA. intrinsic factor;...
 
A. intrinsic factor; parietal
29
Pepsinogen is produced by ? and is activated by ?
A. chief cells; carbonic anhydrase secreted...
 
B. chief cells; hydrochloric acid secreted by parietal cells
30
Why are several digestive enzymes secreted as zymogens?A. because this saves one step in their...
 
D. so they act only in the stomach lumen and do not digest intracellular proteins
31
The entertogastric reflex serves toA. relax the stomach in preparation for swallowed food.B....
 
C. stimulate intestinal motility when there in food in the stomach 
32
? is a hormone, whereas ? is an enzymeA. enterokinase; pepsinB. gastrin; secretinC. gastrin;...
 
E. secretin pepsin
33
? is associated with food stretching the stomach and activating myenteric and vagovagal reflexes,...
 
B. gastric phase
34
The organ that stores excess glucose and releases it later into the blood is theA. pancreasB....
 
A. pancreas
35
A hepatic (portal) triad consists of A. right, left, and common hepatic ductsB. common...
 
D. bile ductule, branch of hepatic artery, and branch of hepatic portal vein
36
The ? synthesizes bile acids by metabolizing ?A. duodenum; neutral fatsB. ileum; bilirubinC....
 
E. liver; cholesterol
37
Which of these is NOT a components of pancreatic juice?A. trypsinogenB. chymotrypsinogenC....
 
E. enterokinase
38
Which of these nutrients is absorbed by the lacteals of the small intestine?A. triglyceridesB....
 
B. amino acids
39
Which of the following enzymes functions at the lowest pH?A. salivary amylaseB. pancreatic...
 
E. dipeptidase
40
Which of these is the site of contact digestion?A. gastric pitsB. surface of the gastric mucosaC....
 
D. brush border of the small intestine
41
The small intestine has a very large absorptive surface associated with all these structures...
 
E. rugae
42
The migrating motor complexA. milks the chyme toward the colonB. allows a bolus to move down...
 
A. milks the chyme toward the colon
43
The ? of the small intestine is/are similar to the ? of the stomachA. villi; pyloric glandB....
 
C. intestinal crypts; gastric pits
44
Carbohydrate digestion begins in the ?, whereas protein digestion begins in the ?A. liver;...
 
C. mouth; stomach
45
? break(s) down ?A. lactase; glucoseB. peptidases; proteinsC. lipases; micellesD. lactose;...
 
E. nucleases; nucleotides
46
Amino acids and monosaccharides are absorbed in the ?, and fatty acids are absorbed in the...
 
E. small intestine; small intestine
47
Lecithin prepares fats for hydrolysis by formingA. triglycerides, fatty acids, and glycerolB....
 
D. emulsification droplets
48
Proteins are digested by different enzymes acting in the following sequenceA. pepsin, trypsin,...
 
C. trpysin, pepsin, carboxypeptidase, dipeptidase
49
? transport lipids to the surface of the intestinal absorptive cells, which process them into?A....
 
C.micelles; fat globules
50
The three most abundant classes of nutrients areA. carbohydrates, proteins, and mineralsB....
 
B. fats, proteins, and carbohydrates
51
The muscle tone of the ? along the colon contracts it lengthwise, causing its walls to bulge...
 
C. haustra; taeniae coli
52
Bacterial flora carry out all of the following EXCEPTA. digest most of the proteins we get...
 
D. digest cellulose
53
Defecation is stimulated by A. the chemical composition of the fecesB. bacterial flora...
 
E. stretching of the rectum

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