3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858866
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Quiz: Gastrointestinal Physiology
Due Mar 24 at 11:59pm
Points 50
Questions 50
Time Limit 100 Minutes
Instructions
Attempt History
Attempt Time Score
LATEST Attempt 1 43 minutes 47 out of 50
Correct answers are hidden.
Score for this quiz: 47 out of 50
Submitted Mar 14 at 8:40am
This attempt took 43 minutes.
Question 1
1 / 1 pts
Decreased peristalsis in stomach
Increased tone of orad stomach
Increased tone of pylorus
Segmentation contractions in intestine
Question 2
1 / 1 pts
The quiz:
Covers the Learn material from Module 6: Week 6.
Contains 50 multiple-choice and multiple answer questions.
Is limited to 100 minutes.
Allows 1 attempt.
Is worth 50 points.
Submit this assignment by 11:59 p.m. (ET) on Sunday of Module 6: Week 6.
Conditions that tend to increase gastric emptying include which of the following?
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3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858866
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Chief cells
G cells
Goblet cells
Mucous neck cells
Parietal cells
Question 3
1 / 1 pts
Contraction of internal anal sphincter
Duodenal peristalsis
Gastric retropulsion
Hunger sensations
Rectal distention
Question 4
1 / 1 pts
Cephalic phase
Esophageal phase
Gastric phase
Intestinal phase
Histamine
Question 5
1 / 1 pts
Acetylcholine
GLP
A 70-year-old woman undergoes a gastrectomy for Zollinger-Ellison syndrome. Her physician
informs her that she will need to take intramuscular vitamin B12 shots for the rest of her life.
Absence of which of the following cell types is responsible for this vitamin replacement
requirement?
Mass movements in the large intestine cause which of the following?
Most of the acid response to a meal occurs during which phase?
Which one of the following is the main excitatory neurotransmitter to gut smooth muscle?
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858866
3/16
GIP-1
VIP
Serotonin
Question 6
1 / 1 pts
Cholecystokinin
Glucose-dependent insulinotropic peptide
Gastrin
Motilin
Secretin
Question 7
1 / 1 pts
Gastrin
HCl
Intrinsic factor
Pepsin
Rennin
Question 8
1 / 1 pts
Cholecystokinin
Gastrin
Glucose-dependent insulinotropic peptide
Motilin
An 87-year-old farmer has a breakfast of eggs, bacon, ham, grits with cheese, fried potatoes,
biscuits with syrup, buttermilk, and coffee. Which of the following hormones is released by the
presence of fat and protein in the small intestine and helps decrease gastric emptying?
Which of the following substances secreted by the stomach is absolutely critical for life?
A 24-year-old woman drinks one cup of decaffeinated coffee with no sugar or cream. Which of
the following gastrointestinal hormones is most likely to be elevated before entry of coffee into
the duodenum?
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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Secretin
Question 9
1 / 1 pts
Calcium
Chloride
Magnesium
Potassium
Sodium
Question 10
1 / 1 pts
Cholesterol
Free fatty acids
Lipoproteins
Phospholipids
Triglycerides
Question 11
1 / 1 pts
Achalasia
Alcoholic cirrhosis
Cystic brosis
Cholera toxin causes severe diarrhea by irreversibly increasing the intracellular levels of cyclic
adenosine monophosphate. The increase in cyclic adenosine monophosphate activates
channels for which of the following ions?
The major constituent of chylomicrons is which of the following?
A 44-year-old man underwent a cholecystectomy 9 years ago. At that time, the liver was normal,
but an enlarged pancreatic head was identied. Three years ago, he was admitted for upper
gastrointestinal bleeding. Endoscopy revealed multiple ulcers in the duodenum. The serum
gastrin level was 1,100 pg/mL (normal, 0 to 100 pg/mL). Abdominal computed tomography
revealed two masses in the pancreas and multiple liver metastases. The liver biopsy conrmed
the presence of non beta islet cell tumor tissue. This patient is most likely to have which of the
following diseases?
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858866
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Type 2 diabetes
Zollinger-Ellison syndrome
Question 12
1 / 1 pts
Circular Muscle
Mucosa
Muscularis mucosae
Serosa
IncorrectQuestion 13
0 / 1 pts
CCK
GLP
Serotonin
Norepinephrine
Glucagon
Question 14
1 / 1 pts
Antrum
Colon
Duodenum
Ileum
Jejunum
Question 15
1 / 1 pts
The endocrine or hormone-secreting cells of the gastrointestinal tract are located in or closest
to which layer of the gut wall?
An oral glucose load is cleared from the circulation more rapidly compared with an intravenous
glucose load. This interesting phenomenon can be attributed to the actions of which hormone?
Most of the gastrin released after a meal is from which structure?
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858866
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Cholecystokinin
Glucose-dependent insulinotropic peptide
Gastrin
Motilin
Secretin
Question 16
1 / 1 pts
Increased serum gastrin
Sympathetic stimulation
Vagal stimulation
Vagotomy
Increased serum secretin
IncorrectQuestion 17
0 / 1 pts
Sodium increases
Sodium decreases
Potassium increases
Osmolarity stays the same
Osmolarity decreases
Question 18
1 / 1 pts
Higher than normal pressure at lower esophageal sphincter
Lower than normal pressure at lower esophageal sphincter
A 28-year-old medical student consumes a cheeseburger, fries, and chocolate shake. The meal
stimulates the release of several gastrointestinal hormones. The presence of fat, carbohydrate,
or protein in the duodenum stimulates the release of which hormone from the duodenal
mucosa?
Which of the following would eliminate receptive relaxation of the lower esophageal sphincter
and fundus portion of the stomach?
Which set of changes to saliva occur as the rate of salivation increases?
Achalasia is associated with which of the following at rest and during swallowing?
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Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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Higher than normal pressure at upper esophageal sphincter
Lower than normal pressure at upper esophageal sphincter
None of the answers are correct
Question 19
1 / 1 pts
Acetylcholine
Amino acids
Gastrin-releasing peptide
Histamine
Somatostatin
Question 20
1 / 1 pts
Amino acids
Gastrin
Glucose-dependent insulinotropic peptide
Secretin
Vasoactive intestinal peptide
Question 21
1 / 1 pts
Calcium
Chloride
Phosphate
Potassium
Sodium
The stimulatory effects of gastrin on acid secretion are mediated in part by gastrin-induced
secretion of which substance?
Receptive relaxation of the fundus is mediated by which substance?
Which of the following ions is most closely associated with uid absorption from the
gastrointestinal tract?
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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Question 22
1 / 1 pts
Gastrin
Cholecystokinin
Secretin
GIP
Motilin
Question 23
1 / 1 pts
Decreased excretion of bilirubin into bile
Increased uptake of bilirubin by hepatocytes
Enhanced conjugation of bilirubin
Excessive hemolysis
Question 24
1 / 1 pts
GLUT 2
GLUT 3
GLUT 4
GLUT 5
GLUT 1
Question 25
1 / 1 pts
Free fatty acids
Which of the following slows gastric emptying?
Cirrhosis of the liver often leads to hyperbilirubinemia (jaundice). This increase in serum
bilirubin levels in patients with alcoholic cirrhosis most often results from which of the
following?
Fructose, galactose, and glucose are transported across the basolateral membrane of
enterocytes by which hexose transporter?
Which of the following substances is absorbed by enterocytes (intestinal epithelial cells) from
the intestinal lumen by facilitated diffusion?
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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2-Monoglyceride
Fructose
Galactose
Glucose
Question 26
1 / 1 pts
Apoproteins
Chylomicrons
Emulsied fat globules
Free triglycerides
Micelles
Question 27
1 / 1 pts
Somatostatin
Gastrin
Motilin
Acetylcholine
Histamine
Question 28
1 / 1 pts
Cholecystokinin
Gastrin
Mass movements
Motilin
Vasoactive intestinal peptide
What is the major form by which triglycerides are transported in lymph?
Which of the following does not stimulate acid secretion?
Migrating myoelectric complexes are thought to be stimulated by which of the following?
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
https://canvas.liberty.edu/courses/585957/quizzes/2858866
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Question 29
1 / 1 pts
Calcium
Chloride
Phosphate
Potassium
Sodium
Question 30
1 / 1 pts
Duodenum
External anal sphincter
Ileum
Jejunum
Transverse colon
Question 31
1 / 1 pts
Increased peristaltic waves
Increased abdominal pressure
Contraction of internal anal sphincter
Contraction of external anal sphincter
Closure of the glottis
Question 32
1 / 1 pts
cannot secrete bile
Cystic brosis causes a primary disruption in the transfer of which ion across cell membranes?
Slow wave frequency is greatest in which of the following structures?
A 44-year-old man has his spinal cord severed at T1 in an automobile accident that leaves him
paraplegic. Chronic constipation becomes a problem. His physician advises him to distend the
rectum digitally on a regular schedule to initiate the defecation reex. Rectal distention causes
which of the following in this patient?
A person without a gallbladder
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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cannot store bile
will have no diculty digesting a large, fat-rich meal
cannot digest proteins
cannot store lipase
Question 33
1 / 1 pts
Antrum
Colon
Ileum
Duodenum
Transverse colone
Question 34
1 / 1 pts
Antrum
Colon
Duodenum
Esophagus
Ileum
Question 35
1 / 1 pts
Enterokinase
Pancreatic amylase
Pepsinogen
Gastrin, cholecystokinin, secretin, motilin, and glucose-dependent insulinotropic peptide are
secreted from endocrine cells located in which of the following structures?
A 45-year-old man consumes a meal consisting of 20% fat, 50% carbohydrate, and 30% protein.
The following gastrointestinal hormones are released at various times over the next 6 hours:
gastrin, secretin, motilin, glucose-dependent insulinotropic peptide, and cholecystokinin. Which
of the following structures is most likely to release all ve hormones in this man?
Which of the following enzymes initiates a cascade that activates all pancreatic proteases in
the lumen of the small intestine?
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Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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Ptyalin
Trypsin
Question 36
1 / 1 pts
Abdominal muscle
Diaphragm
External anal sphincter
Internal anal sphincter
Sigmoid colon
Question 37
1 / 1 pts
Circular muscle layer
Gastric mucosal barrier
G cells
Myenteric plexus
Parietal cells
Question 38
1 / 1 pts
Bombesin
Cholecystokinin
Glucose-dependent insulinotropic peptide
Secretin
Motilin
Distention of the rectum causes a reex relaxation of which structure?
A 67-year-old man has heartburn and stomach pain. Endoscopy shows several small gastric
ulcers in the corpus. Biopsies were positive for Helicobacter pylori, which promotes gastric
ulcer formation by damaging which of the following?
At high concentrations, gastrin shares multiple effects with which gastrointestinal peptide?
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Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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Question 39
1 / 1 pts
contraction of the gallbladder
acceleration of gastric emptying
stimulation of HCO3− secretion
stimulation of pancreatic enzyme secretion?
Question 40
1 / 1 pts
inhibition of H+-K+ ATPase
inhibition of muscarinic receptors
stimulation of muscarinic receptors
decreased intracellular cyclic AMP (cAMP) levels
inhibition of somatostatin?
Question 41
1 / 1 pts
more negative
less negative
more positive
less positive
Question 42
1 / 1 pts
secretion of water
absorption of water
absorption of more solute than water
Which of the following is/are (an) action(s) of cholecystokinin (CCK): Choose all that apply;
A patient with a duodenal ulcer is treated with cimetidine, a drug that inhibits H+ secretion in
parietal cells. Which of the following is the mechanism of cimetidine's action:
During the rising phase (upstroke) of a slow wave, which change in membrane potential is
occurring:
Which phenomenon in salivary ducts explains why the nal salivary secretion is hypotonic
relative to the primary secretion of the acinar cells:
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Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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secretion of more solute than water
Question 43
1 / 1 pts
closes Cl− channels
increases cAMP levels
activates αs subunit of GTP-binding protein
increases GTPase activity
Question 44
1 / 1 pts
Ca2+
alanine
fructose
sucrose
cholesterol?
Question 45
1 / 1 pts
iii - ii - iv - i - v
ii - iv - v -i - iii
v - iv - i - iii - ii
i - iii - iv - ii - v
Question 46
1 / 1 pts
Cholera toxin has which of the following direct or indirect actions: a. opens Na+ channels;
Choose all that apply;
Which of the following substances must be digested before being absorbed by the small
intestine:
What is the correct sequence of events in lipid absorption: (i)formation of cholesterol ester,
(ii)action of pancreatic lipase, (iii)emulsication of lipids in the intestinal lumen, (iv)micelles,
(v)chylomicrons?
As pancreatic ow rate increases, which of the following has/have increased concentration in
pancreatic juice:
3/20/24, 1:03 PM
Quiz: Gastrointestinal Physiology: MSCI520: Principles of Physiology I (C01)
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Na+
K+
HCO3−
Cl−
osmolarity?
Question 47
1 / 1 pts
pepsinogen to pepsin
trypsinogen to trypsin
procarboxypeptidase to carboxypeptidase
colipase to lipase
IncorrectQuestion 48
0 / 1 pts
stomach
duodenum
ileum
colon
Question 49
1 / 1 pts
Inhibition of ACh action on parietal cells
stimulation of somatostatin action on parietal cells
inhibition of CCKb receptors
inhibition of H+-K+ ATPase
inhibition of Na+-K+ ATPase.
Which reaction(s) is/are catalyzed by trypsin: Choose all that apply;
Where is the frequency of slow waves the highest:
A patient with H. pylori infection develops a gastric ulcer and is treated with omeprazole. Which
of the following is/are mechanism(s) of action of omeprazole?
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Question 50
1 / 1 pts
Increased body fat
increased insulin levels
increased ghrelin levels
increased glucagon
Quiz Score: 47 out of 50
Which of the following suppresses appetite? Choose all that apply;
