PSL 310: Exam 5 Final Test Questions
with Guaranteed Pass Solutions 2026-
2027 Updated.
GI reflexes ______ occur without involvement of the central nervous system (without the
central nervous system being involved in the reflex).
A.) Can
B.) Cannot - Answer A. Can
Saliva
A.) helps keep teeth clean
B.) allows food molecules to stimulate the taste buds
C.) contains lysozyme
D.) A and B
E.) A, B, and C - Answer E.) A, B, and C
Digestion of carbohydrates (starches) begin in the
A.) small intestine
B.) large intestine
C.) stomach
D.) mouth - Answer D.) mouth
(T/F) It is not possible for a person to swallow food while standing on their head (or upside
down) - Answer False
Parietal cells of the stomach secrete
A.) HCL (hydrochloric acid)
B.) intrinsic factor
C.) pepsin
D.) Both a and B
E.) A, B and C - Answer D.) Both a and B
Gastrin
A.) is a hormone from the antrum of the stomach
B.) stimulates HCL (hydrochloric acid) secretion from certain cells in the stomach
,C.) both A and B - Answer C.) both A and B
Peristaltic waves are strongest in which region of the stomach below?
A.) body
B.) antrum
C.) fundus - Answer B.) antrum
Which of the following increases stomach emptying?
A.) distension of the stomach
B.)increased acid in the duodenum
C.) both A and B - Answer A.) distension of the stomach
(T/F) The enterogastrones affect stomach emptying? - Answer True
All of the following are secreted by the pancreas EXCEPT
A.) amylase
B.) lipase
C.) enterokinase (enteropeptidase)
D.) trypsinogen
E.) chymotrypsinogen - Answer C.) enterokinase (enteropeptidase)
(T/F) Protein digesting enzymes (like pepsin and trypsin) are secreted in an inactive form to
protect the secreting cells/ - Answer True
Bile is stored and concentrated in the ______
A.) pancreas
B.) liver
C.) stomach
D.) gall bladder
E.) small intestine - Answer D.) gall bladder
Bile salts
A.) are enzymes
B.) increase the surface area for lipase to act - Answer B.) increase the surface area for lipase
to act
,Folds, villi, and microvilli act to create a large surface area for absorption of the digested food
molecules (and a large amount of water) in the
A.) large intestine
B.) stomach
C.) small intestine
D.) A,B, and C - Answer C.) small intestine
Which below is NOT correctly matched with the site where it occurs?
A.) mass movement- large intestine
B.) segmentation- small intestine
C.) haustral contractions- large intestine
D.) migrating motility complex- large intestine - Answer D.) migrating motility complex- large
intestine
Bacteria in the large intestine produce
A.) vitamins
B.) gas
C.) both A and B
D.) neither A nor B- there are no bacteria in the large intestine - Answer C.) both A and B
The defecation reflex
A.) is initiated when stretch receptors in the rectum are stimulated
B.) Involves relaxation by the internal (smooth muscle) anal sphincter
C.) can be over-ridden and defecation delayed by voluntary contraction of the external (skeletal
muscle) anal sphincter
D.) A and B
E.) A, B and C - Answer E.) A, B and C
(T/F) Digestion makes larger molecules from smaller molecules. - Answer False
(T/F) The conditions within the lumen of the digestive tract can be too harsh for the rest of the
body. - Answer True
Which of the following is matched with its unit that can be absorbed (or absorbable unit)?
A.) protein- fatty acid
, B.) carbohydrate- monoglyceride
C.) fat- monosaccharide
D.) protein- amino acid - Answer D.) protein- amino acid
The enteric nervous system includes the
A.) myenteric plexus
B.) submucosal (or submucous) plexus
C.) both A and B
D.) neither A nor B - Answer C.) both A and B
Which of the following is an accessory digestive gland?
A.) pancreas
B.) salivary gland
C.) liver
D.) A and B
E.)A, B, and C - Answer E.)A, B, and C
A local, intratract or short reflex ______ involve autonomic neurons
A.) would
B.) would not - Answer B.) would not
It _______ possible for a person to swallow food while standing on their head (or upside down).
A.) is
B.) is not - Answer A.) is
Which of the following normally occurs during the oropharyngeal stage of swallowing?
A.) closure of the glottis
B.) inhibition of respiration
C.) both A and B
D.) neither A nor B - Answer C.) both A and B
Saliva contains all of the following EXCEPT
A.) lysozyme
B.) mucus
C.) carbohydrate digesting enzyme
with Guaranteed Pass Solutions 2026-
2027 Updated.
GI reflexes ______ occur without involvement of the central nervous system (without the
central nervous system being involved in the reflex).
A.) Can
B.) Cannot - Answer A. Can
Saliva
A.) helps keep teeth clean
B.) allows food molecules to stimulate the taste buds
C.) contains lysozyme
D.) A and B
E.) A, B, and C - Answer E.) A, B, and C
Digestion of carbohydrates (starches) begin in the
A.) small intestine
B.) large intestine
C.) stomach
D.) mouth - Answer D.) mouth
(T/F) It is not possible for a person to swallow food while standing on their head (or upside
down) - Answer False
Parietal cells of the stomach secrete
A.) HCL (hydrochloric acid)
B.) intrinsic factor
C.) pepsin
D.) Both a and B
E.) A, B and C - Answer D.) Both a and B
Gastrin
A.) is a hormone from the antrum of the stomach
B.) stimulates HCL (hydrochloric acid) secretion from certain cells in the stomach
,C.) both A and B - Answer C.) both A and B
Peristaltic waves are strongest in which region of the stomach below?
A.) body
B.) antrum
C.) fundus - Answer B.) antrum
Which of the following increases stomach emptying?
A.) distension of the stomach
B.)increased acid in the duodenum
C.) both A and B - Answer A.) distension of the stomach
(T/F) The enterogastrones affect stomach emptying? - Answer True
All of the following are secreted by the pancreas EXCEPT
A.) amylase
B.) lipase
C.) enterokinase (enteropeptidase)
D.) trypsinogen
E.) chymotrypsinogen - Answer C.) enterokinase (enteropeptidase)
(T/F) Protein digesting enzymes (like pepsin and trypsin) are secreted in an inactive form to
protect the secreting cells/ - Answer True
Bile is stored and concentrated in the ______
A.) pancreas
B.) liver
C.) stomach
D.) gall bladder
E.) small intestine - Answer D.) gall bladder
Bile salts
A.) are enzymes
B.) increase the surface area for lipase to act - Answer B.) increase the surface area for lipase
to act
,Folds, villi, and microvilli act to create a large surface area for absorption of the digested food
molecules (and a large amount of water) in the
A.) large intestine
B.) stomach
C.) small intestine
D.) A,B, and C - Answer C.) small intestine
Which below is NOT correctly matched with the site where it occurs?
A.) mass movement- large intestine
B.) segmentation- small intestine
C.) haustral contractions- large intestine
D.) migrating motility complex- large intestine - Answer D.) migrating motility complex- large
intestine
Bacteria in the large intestine produce
A.) vitamins
B.) gas
C.) both A and B
D.) neither A nor B- there are no bacteria in the large intestine - Answer C.) both A and B
The defecation reflex
A.) is initiated when stretch receptors in the rectum are stimulated
B.) Involves relaxation by the internal (smooth muscle) anal sphincter
C.) can be over-ridden and defecation delayed by voluntary contraction of the external (skeletal
muscle) anal sphincter
D.) A and B
E.) A, B and C - Answer E.) A, B and C
(T/F) Digestion makes larger molecules from smaller molecules. - Answer False
(T/F) The conditions within the lumen of the digestive tract can be too harsh for the rest of the
body. - Answer True
Which of the following is matched with its unit that can be absorbed (or absorbable unit)?
A.) protein- fatty acid
, B.) carbohydrate- monoglyceride
C.) fat- monosaccharide
D.) protein- amino acid - Answer D.) protein- amino acid
The enteric nervous system includes the
A.) myenteric plexus
B.) submucosal (or submucous) plexus
C.) both A and B
D.) neither A nor B - Answer C.) both A and B
Which of the following is an accessory digestive gland?
A.) pancreas
B.) salivary gland
C.) liver
D.) A and B
E.)A, B, and C - Answer E.)A, B, and C
A local, intratract or short reflex ______ involve autonomic neurons
A.) would
B.) would not - Answer B.) would not
It _______ possible for a person to swallow food while standing on their head (or upside down).
A.) is
B.) is not - Answer A.) is
Which of the following normally occurs during the oropharyngeal stage of swallowing?
A.) closure of the glottis
B.) inhibition of respiration
C.) both A and B
D.) neither A nor B - Answer C.) both A and B
Saliva contains all of the following EXCEPT
A.) lysozyme
B.) mucus
C.) carbohydrate digesting enzyme
