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peristalsis
Synchronized or coordinated contraction of the muscles that surround tubuluar organs. Waves of peristalsis, for example, propel food content through the gastrointestinal tract (GI tract) to facilitate normal digestion and the absorption of nutrients. Peristalsis is dependent upon the coordination between the muscles, nerves, and hormones in the GI tract. It is effected by the autonomic nervous system plexuses acting on visceral muscle layers.
Related category
• ANATOMY AND PHYSIOLOGY
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