GI Physiology Quiz Questions

38 Questions | By Rejust | Last updated: May 15, 2022 | Total Attempts: 12979

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Have you studied the topic of Gastrointestinal (GI) Physiology in your biology class, or are you learning it now? In both cases, play this GI Physiology quiz with detailed questions and answers. We have designed this well-researched quiz to check your understanding of Gastrointestinal Physiology and its related concepts. Let's see if you can score more than 70% and pass this test. We wish you good luck! Hope you'll find this test useful.

Questions and Answers

1.

Extrinsic stimulation (ANS) of the large intestine through the vagus nerve (PNS) causes?
- A.
  
  Inhibition of colonic movement
- B.
  
  Haustrations
- C.
  
  Mass movements
2.

Which of the following conditions is most likely to stimulate the secretion of cholecystokinin (CCK) from the duodenal mucosa?
- A.
  
  Elevated amino acids in the gut
- B.
  
  Elevated free fatty acids in the gut
- C.
  
  Elevated glucose in the gut
- D.
  
  High pH in the gut
- E.
  
  Hypotonicity in the gut
3.

Which of the following conditions is most likely to stimulate the secretion of glucose-dependent insulinotropic peptide/Gastric Inhibitory Peptide (GIP) from the duodenal mucosa?
- A.
  
  Elevated amino acids in the gut
- B.
  
  Elevated free fatty acids in the gut
- C.
  
  Elevated glucose in the gut
- D.
  
  High pH in the gut
- E.
  
  Hypotonicity in the gut
4.

Which of the following conditions is most likely to stimulate the secretion of gastrin from the duodenal mucosa?
- A.
  
  Elevated amino acids in the gut
- B.
  
  Elevated free fatty acids in the gut
- C.
  
  Elevated glucose in the gut
- D.
  
  High pH in the gut
- E.
  
  Hypotonicity in the gut
5.

Which of the following conditions is most likely to stimulate the secretion of secretin from the duodenal mucosa?
- A.
  
  Elevated amino acids in the gut
- B.
  
  Elevated free fatty acids in the gut
- C.
  
  Elevated glucose in the gut
- D.
  
  High pH in the gut
- E.
  
  Hypotonicity in the gut
6.

Which of the following conditions is most likely to stimulate the secretion of an unknown hormone from the duodenal mucosa that plays a role in decreased gastric emptying?
- A.
  
  Elevated amino acids in the gut
- B.
  
  Elevated free fatty acids in the gut
- C.
  
  High pH in the gut
- D.
  
  Hypotonicity in the gut
7.

What is the most common type of motility associated with the descending colon?
- A.
  
  Haustrations
- B.
  
  Antipropulsive movements
- C.
  
  Mass movement
- D.
  
  Perisatalsis
- E.
  
  Segmentation
8.

What is the most common type of motility associated with the small intestine?
- A.
  
  Haustrations
- B.
  
  Antipropulsive movements
- C.
  
  Mass movement
- D.
  
  Perisatalsis
- E.
  
  Segmentation
9.

What is the most common type of motility associated with the esophagus?
- A.
  
  Haustrations
- B.
  
  Antipropulsive movements
- C.
  
  Mass movement
- D.
  
  Perisatalsis
- E.
  
  Segmentation
10.

What is the type of motility that occurs in the small intestine to move chime caudally?
- A.
  
  Haustrations
- B.
  
  Antipropulsive movements
- C.
  
  Mass movement
- D.
  
  Perisatalsis
- E.
  
  Segmentation
11.

What is the type of motility that occurs in the small intestine to facilitate mixing. It is basically a bidirectional form of peristalsis?
- A.
  
  Haustrations
- B.
  
  Antipropulsive movements
- C.
  
  Mass movement
- D.
  
  Perisatalsis
- E.
  
  Segmentation
12.

If ingested as a meal, the following will drain out of the stomach in what order?carbs, fats, proteins, liquids
13.

What is the primary pre-ganglionic neurotransmitter in the SNS (sympathetic) nervous system?
- A.
  
  Ach
- B.
  
  NE
- C.
  
  Epi
- D.
  
  NO
14.

What is the primary post-ganglionic neurotransmitter in the SNS (sympathetic) nervous system?
- A.
  
  Ach
- B.
  
  NE
- C.
  
  Epi
- D.
  
  NO
15.

Contraction of the circular layer causes the lumen to become narrower.
- A.
  
  True
- B.
  
  False
16.

Contraction of the longitudinal layer causes the lumen to become narrower.
- A.
  
  True
- B.
  
  False
17.

The_____layer of GI smooth muscle exhibits stronger constrictions because it has more gap junctions.
- A.
  
  Circular
- B.
  
  Longitudinal
18.

The lamina propria (a sublayer of the mucosa) and the submucosa both consist primarily of?
- A.
  
  Loose connective tissue
- B.
  
  Intestinal smooth muscle
- C.
  
  Areolar connective tissue
- D.
  
  Squamous mesothelial cells
19.

In which of the tunics of the GI system would you find glands?
- A.
  
  Mucosa
- B.
  
  Submucosa
- C.
  
  Muscularis externa
- D.
  
  Serosa
20.

In which layer would you find plexuses of the enteric nervous system?
- A.
  
  Mucosa
- B.
  
  Submucosa
- C.
  
  Muscularis externa
- D.
  
  Serosa
21.

What is the parasympathetic innervation of the cecum, ascending colon, and transverse colon?
- A.
  
  Vagus n.
- B.
  
  Pelvic n.
- C.
  
  Superior mesenteric n.
- D.
  
  Inferior mesenteric n.
- E.
  
  Inferior hypogastric n.
- F.
  
  Superior hypogastric n.
22.

What is the parasympathetic innervation of the descending colon, sigmoid colon, rectum, and anal canal?
- A.
  
  Vagus n.
- B.
  
  Pelvic n.
- C.
  
  Superior mesenteric n.
- D.
  
  Inferior mesenteric n.
- E.
  
  Inferior hypogastric n.
- F.
  
  Superior hypogastric n.
23.

What is the sympathetic innervation of the descending colon and transverse colon?
- A.
  
  Vagus n.
- B.
  
  Pelvic n.
- C.
  
  Superior mesenteric n.
- D.
  
  Inferior mesenteric n.
- E.
  
  Inferior hypogastric n.
- F.
  
  Superior hypogastric n.
24.

What is the sympathetic innervation of the cecum and ascending colon?
- A.
  
  Vagus n.
- B.
  
  Pelvic n.
- C.
  
  Superior mesenteric n.
- D.
  
  Inferior mesenteric n.
- E.
  
  Inferior hypogastric n.
- F.
  
  Superior hypogastric n.
25.

What is the sympathetic innervation of the sigmoid colon?
- A.
  
  Vagus n.
- B.
  
  Pelvic n.
- C.
  
  Superior mesenteric n.
- D.
  
  Inferior hypogastric n.
- E.
  
  Superior hypogastric n.