Lower esophageal sphincter relaxed — Free Physiology Illustration | GPAI | GPAI

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Lower esophageal sphincter relaxed — Free Physiology Illustration | GPAI | GPAI

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Lower esophageal sphincter relaxed

Lower esophageal sphincter relaxed

Physiology

Lower esophageal sphincter relaxed

A thick circular smooth-muscle ring at the distal lower esophagus shown in a relaxed, open state. The pink to pink-red muscular wall appears loosened, with the central lumen widened and expanded to allow passage through the sphincter.

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PNG

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