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The Digestive System Part 2
Test Description: Dig system 2
Instructions: Answer all questions to get your test result.
1) Strong contractions of the ascending and transverse colon that move the contents of the colon toward the sigmoid colon are called
A
segmentation
B
pendular movements
C
mass peristalsis
D
defecation
2) The functions of the oral cavity include
A
all of the above
B
lubrication and evaluation of material before swallowing
C
the initial digestion of lipids and carbohydrates
D
mechanical processing of food
3) Functions of the tongue include
A
all of the above
B
sensory analysis of food
C
manipulation of food
D
mechanical processing of food
4) During swallowing, the
A
epiglottis closes
B
all of the above
C
soft palate elevates
D
larynx elevates
5) Secretions from the salivary glands
A
help control bacterial populations in the mouth
B
all of the above
C
are mostly digestive enzymes
D
provide analysis before swallowing
6) Food is initially ground and torn into smaller pieces by the teeth. Typically, adults have _____incisors, ______cuspids, ______bicuspids, and_____molars.
A
8,4,8,6
B
8,4,8,12
C
4,2,8,6
D
8,8,4,12
7) Salivary amylase is an enzyme, produced and released by the salivary glands, that partially digests
A
fats
B
carbohydrates
C
proteins
D
all of the above
8) The tongue is controlled by the _____nerve
A
facial
B
glossopharyngeal
C
abducens
D
vagus
9) When the_____cells of the tongue are activated, they send signals to the brain via the _____nerve to interpret the flavor of food
A
gustatory;facial
B
none of the above
C
papillary;trigeminal
D
tastebuds;facial
10) During the swallowing process, the _____closes off the _____.
A
epiglottis;esophagus
B
glottis;trachea
C
glottis;esophagus
D
epiglottis;trachea
11) Of the following selections, the one which is not a function of the stomach is
A
mechanical breakdown of food
B
digestion of carbohydrates and fats
C
denaturation of protein
D
storage of ingested food
12) The greater omentum is
A
attached to the stomach at the lesser curvature
B
a fatty sheet that hangs like an apron over the abdominal viscera
C
the major portion of the stomach
D
important in the digestion of fats
13) Gastric pits are
A
areas in the stomach where proteins are denatured
B
involved in absorption of liquids from the stomach
C
ridges in the body of the stomach
D
pockets in the lining of the stomach that contain secretory cells
14) The three divisions of the small intestine are
A
duodenum, jejunum, and ileum
B
buccal, pharyngeal, and esophageal
C
fundus, body, and pylorus
D
cephalic, gastric, and intestinal
15) In the small intestine, immediate acceleration of glandular secretions and peristaltic activity in all intestinal segments is initiated by
A
the plicae circularis
B
the gastroileal reflex
C
the gastroenteric reflex
D
the sympathetic stimulation
16) The bulk of chemical digestion and absorption of nutrients into the bloodstream occurs in the
A
ileum
B
jejunum
C
cecum
D
duodenum
17) In order for nutrients to leave the small intestine and enter the bloodstream, the nutrients must be absorbed through the
A
villi
B
lacteals
C
gastric pits
D
mucosal glands
18) The hormone that causes the release of insulin into the bloodstream when glucose is present in the small intestine is
A
CCK
B
gastrin
C
GIP
D
secretin
19) The hormones cholecystokinin and secretin are released by the
A
liver
B
small intestine
C
gallbladder
D
pancreas
20) The intestinal hormone that stimulates the pancreas to release a watery secretion that is
A
cholecystokinin
B
secretin
C
gastrin
D
enterocrinin
*select an answer for all questions
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