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  • Question 1 - Where is Basic Electrical rhythm initiated ...

    Correct

    • Where is Basic Electrical rhythm initiated

      Your Answer: Interstitial cells of cajal

      Explanation:

      The interstitial cells of Cajal are specialized pacemaker cells located in the wall of the stomach, small intestine, and large intestine. These cells are connected to the smooth muscle via gap junctions and the myenteric plexus. The cell membranes of the pacemaker cells undergo a rhythmic depolarization and repolarization from -65mV to -45mV. This rhythm of depolarization-repolarization of the cell membrane creates a slow wave known as a basic electrical rhythm (BER), and it is transmitted to the smooth muscle cells.

    • This question is part of the following fields:

      • Gastrointestinal
      • Medicine
      40.9
      Seconds

  • Question 2 - Which three parietal cell agonists bind at the basolateral membrane at specific receptors...

    Correct

    • Which three parietal cell agonists bind at the basolateral membrane at specific receptors respectively: M3 , H2 , CCK-B, to stimulate acid secretion?

      Your Answer: Acetylcholine, histamine , gastrin

      Explanation:

      The three agonists of parietal cell secretion are gastrin, acetylcholine and histamine. Parietal cells are responsible for the secretion of HCl and intrinsic factor.

    • This question is part of the following fields:

      • Gastrointestinal
      • Medicine
      45.7
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Gastrointestinal (2/2) 100%
Medicine (2/2) 100%
Passmed
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