PHYSIOLOGY
GASTROINTESTINAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Movements carried out in the ascending portion and consists of the contraction of the longitudinal muscle and with it gives you the result of the haustras
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Mov. mix
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mov. massa
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Mov. of propulsion
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Mov. gastric emptying
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Explanation:
Detailed explanation-1: -At a fixed axial location within the esophagus, longitudinal muscle contraction precedes circular muscle contraction, but longitudinal muscle maximally shortens coincident with maximum circular muscle contraction. Longitudinal muscle then relaxes, but more slowly than circular muscle.
Detailed explanation-2: -Muscularis propria (externa): smooth muscle layer. There are usually two layers; the inner layer is circular, and the outer layer is longitudinal. These layers of smooth muscle are used for peristalsis (rhythmic waves of contraction), to move food down through the gut.
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