GI Physiology Quiz Questions

38 Questions | Total Attempts: 2238

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GI Physiology Quiz Questions

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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. 
    • 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. 

      Elevated glucose in the gut

    • D. 

      High pH in the gut

    • E. 

      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 mesenteric n.

    • E. 

      Inferior hypogastric n.

    • F. 

      Superior hypogastric n.