Muscle anatomy of the human esophagus

G. W. Meyer; R. M. Austin; C. E. Brady; D. O. Castell

doi:10.1097/00004836-198604000-00005

Muscle anatomy of the human esophagus

G. W. Meyer, R. M. Austin, C. E. Brady, D. O. Castell

Medicine

Research output: Contribution to journal › Article › peer-review

84 Scopus citations

Abstract

We studied the esophageal musculature of 11 cadavers to assess the distribution of striated and smooth muscle. The lower 54-62% of the esophagus was found to be exclusively smooth muscle, the proximal 4.1-5.6% to be exclusively striated, and the remainder to be mixed. The area in which striated and smooth muscle portions were approximately equal, the 50/50 point, was found to be 4.7 ± 0.6 cm from the proximal portion of the cricopharyngeus muscle. This point corresponds to the previously described physiologic low pressure zone in the proximal esophagus.

Original language	English (US)
Pages (from-to)	131-134
Number of pages	4
Journal	Journal of Clinical Gastroenterology
Volume	8
Issue number	2
DOIs	https://doi.org/10.1097/00004836-198604000-00005
State	Published - Apr 1986

Keywords

Anatomy
Esophagus

ASJC Scopus subject areas

Gastroenterology

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AB - We studied the esophageal musculature of 11 cadavers to assess the distribution of striated and smooth muscle. The lower 54-62% of the esophagus was found to be exclusively smooth muscle, the proximal 4.1-5.6% to be exclusively striated, and the remainder to be mixed. The area in which striated and smooth muscle portions were approximately equal, the 50/50 point, was found to be 4.7 ± 0.6 cm from the proximal portion of the cricopharyngeus muscle. This point corresponds to the previously described physiologic low pressure zone in the proximal esophagus.

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Muscle anatomy of the human esophagus

Abstract

Keywords

ASJC Scopus subject areas

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