Ana3D

left external anal sphincter

Muscular

3D model: left external anal sphincter
left external anal sphincter
3D models: Z-Anatomy - The libre 3D atlas of anatomy - CC-BY-SA 4.0 (https://github.com/Z-Anatomy/Models-of-human-anatomy), by Gauthier Kervyn and contributors; derived from BodyParts3D - The Database Center for Life Science - CC-BY-SA 2.1 Japan; Z-Anatomy states that models "Brainder" (A. Winkler, CC BY-SA 3.0) and "Cranial Nerves and Foramina" (University of Dundee, CAHID, CC BY 4.0) were used as reference/included and adapted. Converted to compressed glTF (curves as tubes, simplified, inner ear and kidney models left out) by the 3D Anatomy project; licensed under CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/).

In 1 atlas

Definition

flat plane of skeletal muscle fibers, elliptical in shape and intimately adherent to the skin surrounding the margin of the anus

Source: Wikidata · Licence: CC0-1.0

Description from Wikidata (https://www.wikidata.org/), available under CC0 1.0 (https://creativecommons.org/publicdomain/zero/1.0/).

Relations

Innervation
set of inferior anal nerves

Neighbouring structures

Practice questions

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Wikipedia (English)