PNB 2265 Exam 3 Practice Questions
with Correct Answers graded A+
The rate of gastric emptying can be increased by:
A. Decreasing tone in the gastric reservoir
B. Inhibiting peristalsis in the antrum
C. Release of bile
D. Inhibiting smooth muscle with Vasoactive Intestinal Peptide (VIP)
E. Increasing the concentration of hydrogen ions in the duodenum - CORRECT
ANSWES -- D. Inhibiting smooth muscle with Vasoactive Intestinal Peptide (VIP)
Which of the following statements about GI motility is FALSE?
A. Tonic contractions occur in the stomach and small intestine
B. Smooth muscle contraction is stimulated by calcium
C. Smooth muscle contraction is stimulated by cAMP
D. Phasic contractions occur in the stomach and small intestine - CORRECT ANSWES
-- C. Smooth muscle contraction is stimulated by cAMP
An occlusion (blockage) in the pancreatic duct would prevent all the following EXCEPT:
A. Micelle formation
B. Chylomicron formation
C. Breakdown of triglycerides
D. Exocytosis into the extracellular fluid
E. All of the above would be prevented - CORRECT ANSWES -- A. Micelle formation
Which of the following might be a suitable treatment for Achalasia?
A. Blocking smooth muscle calcium channels
B. Increasing esophageal pressure
C. Inhibiting gastric motility
D. Activating smooth muscle phophodiesterases
E. All of the above - CORRECT ANSWES -- A. Blocking smooth muscle calcium
channels
Salivary amylase produces _____; pancreatic amylase produces _____
, A. Starch, Disaccharides
B. Monosaccharides, Disaccharides
C. Disaccharides, Monosaccharides
D. Disaccharides, Disaccharides
E. Monosaccharides, Monosaccarides - CORRECT ANSWES -- D. Disaccharides,
Disaccharides
A newborn infant acquires passive immunity through the mother's breast milk. Thus,
antibodies, large, intact peptide molecules, cross into the newborn's blood through
absorption within the small intestine. These intact proteins must be brought into the
small intestine through which method?
A. H+ Symport
B. Na Symport
C. The lymphatic system
D. None of the above - CORRECT ANSWES -- D. None of the above
Hydrochloric acid secretion ______ when _____.
A. Decreases; calcium increases
B. Decreases, phosphorylation increases
C. Increases, cAMP decreases
D. Increases; calcium increases
E. Decreases; cAMP increases - CORRECT ANSWES -- D. Increases; calcium
increases
Following absorption, which of the following molecules would be sent to the heart before
the liver?
A. Tripeptides
B. Acetaminophen (Tylenol)
C. Glucose
D. Fatty acids - CORRECT ANSWES -- D. Fatty acids
Which of the following structures is made from skeletal muscle?
A. The upper esophageal sphincter
B. The lower esophageal sphincter
C. The pyloric sphincter
D. The internal anal sphincter
E. None of the above - CORRECT ANSWES -- A. The upper esophageal sphincter
Which of the following is a satiety signal?
A. Leptin
B. Neuropeptide Y
with Correct Answers graded A+
The rate of gastric emptying can be increased by:
A. Decreasing tone in the gastric reservoir
B. Inhibiting peristalsis in the antrum
C. Release of bile
D. Inhibiting smooth muscle with Vasoactive Intestinal Peptide (VIP)
E. Increasing the concentration of hydrogen ions in the duodenum - CORRECT
ANSWES -- D. Inhibiting smooth muscle with Vasoactive Intestinal Peptide (VIP)
Which of the following statements about GI motility is FALSE?
A. Tonic contractions occur in the stomach and small intestine
B. Smooth muscle contraction is stimulated by calcium
C. Smooth muscle contraction is stimulated by cAMP
D. Phasic contractions occur in the stomach and small intestine - CORRECT ANSWES
-- C. Smooth muscle contraction is stimulated by cAMP
An occlusion (blockage) in the pancreatic duct would prevent all the following EXCEPT:
A. Micelle formation
B. Chylomicron formation
C. Breakdown of triglycerides
D. Exocytosis into the extracellular fluid
E. All of the above would be prevented - CORRECT ANSWES -- A. Micelle formation
Which of the following might be a suitable treatment for Achalasia?
A. Blocking smooth muscle calcium channels
B. Increasing esophageal pressure
C. Inhibiting gastric motility
D. Activating smooth muscle phophodiesterases
E. All of the above - CORRECT ANSWES -- A. Blocking smooth muscle calcium
channels
Salivary amylase produces _____; pancreatic amylase produces _____
, A. Starch, Disaccharides
B. Monosaccharides, Disaccharides
C. Disaccharides, Monosaccharides
D. Disaccharides, Disaccharides
E. Monosaccharides, Monosaccarides - CORRECT ANSWES -- D. Disaccharides,
Disaccharides
A newborn infant acquires passive immunity through the mother's breast milk. Thus,
antibodies, large, intact peptide molecules, cross into the newborn's blood through
absorption within the small intestine. These intact proteins must be brought into the
small intestine through which method?
A. H+ Symport
B. Na Symport
C. The lymphatic system
D. None of the above - CORRECT ANSWES -- D. None of the above
Hydrochloric acid secretion ______ when _____.
A. Decreases; calcium increases
B. Decreases, phosphorylation increases
C. Increases, cAMP decreases
D. Increases; calcium increases
E. Decreases; cAMP increases - CORRECT ANSWES -- D. Increases; calcium
increases
Following absorption, which of the following molecules would be sent to the heart before
the liver?
A. Tripeptides
B. Acetaminophen (Tylenol)
C. Glucose
D. Fatty acids - CORRECT ANSWES -- D. Fatty acids
Which of the following structures is made from skeletal muscle?
A. The upper esophageal sphincter
B. The lower esophageal sphincter
C. The pyloric sphincter
D. The internal anal sphincter
E. None of the above - CORRECT ANSWES -- A. The upper esophageal sphincter
Which of the following is a satiety signal?
A. Leptin
B. Neuropeptide Y
