internal anal sphincter

circular layer of anal muscularis externa

The smooth muscle ring, formed by an increase of the circular muscle fibers of the rectum, situated at the upper end of the anal canal, internal to the outer voluntary external anal sphincter.

类型 Muscle
拉丁名称 circular layer of anal muscularis externa
FMA ID 15710

常见问题

What is the internal anal sphincter?
The smooth muscle ring, formed by an increase of the circular muscle fibers of the rectum, situated at the upper end of the anal canal, internal to the outer voluntary external anal sphincter.
What is the Latin name for the internal anal sphincter?
The Latin name for the internal anal sphincter is circular layer of anal muscularis externa.

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