The muscularis layer of the esophagus contains skeletal muscle superiorly and changes to smooth muscle inferiorly.

Name: The muscularis layer of the esophagus contains skeletal muscle superiorly and changes to smooth muscle inferiorly.
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Quizplus · Accepted Answer

The muscularis layer of the esophagus initially contains skeletal muscle at the superior end, which gradually changes to smooth muscle as it approaches the inferior end, reflecting the transition from voluntary to involuntary control of swallowing.

The Muscularis Layer of the Esophagus Contains Skeletal Muscle Superiorly