Figure 1 - Lower esophageal sphincter (LES) fibers.


From the following article

Medical and endoscopic management of achalasia

Nonko Pehlivanov and Pankaj Jay Pasricha

GI Motility online (2006)

doi:10.1038/gimo52

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The two components of the LES are the horizontally oriented clasp fibers and the more vertically oriented sling fibers. (Source: Netter medical illustration with permission from Elsevier. All rights reserved.)

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