Gastric motility

gastric motility pattern

1. Gastric Motility By Priyanka P awar Pooja sonawane Eshani rane

2. Gastric motility :- Food is passed out from stomach to intestine. There is specific motility pattern in fasted condition called as migrating mayoelectric complex cycle (MMC) . MMC are waves of electrical activity that sweep through the intestines in a regular cycle during fasting. These motor complexes trigger peristaltic waves, which facilitate transportation of indigestible substances such as bone, fiber, and foreign bodies from the stomach, through the small intestine.

3. During fasting state :- Phase I — A prolonged period. Phase II — Increased frequency of action potentials and smooth muscle contractility Phase III — A few minutes of peak electrical and mechanical activity Phase IV — Declining activity which merges with the next Phase I

4. During fed state :- Continuous contractions as in phase 2. Contaction leads to decrease in the size of food particles ( less than 1mm) into suspension form towards pyrolus . Onset of MMC delayed resulting in slow down of gastric emptying rate.

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