GASTRIC MOTILITY INITIATION OF GASTRIC MOTILITY BASAL ELECTRICAL RHYTHM The musculature of stomach, being a single unit smooth mus cle, has its only rhythmic contractile myogenic tone due to the basic electrical rhythm (BER) or gastric slow waves. Thus, the BER represents a wave of depolarization of smooth muscle cell s proceeding from the circular muscles of the fundus of stomach to the pyloric sphincter.
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