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. [ http://www.informatics.jax.org/accession/anna MP:0009055 ]

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, pheno_slim

definition

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.

depicted by

http://upload.wikimedia.org/wikipedia/commons/e/e9/Gray1079.png

has exact synonym

circular muscle layer of anal canal

circular layer of anal muscularis externa

circular layer of muscularis externa of anal canal

circular layer of muscularis propria of anal canal

id

UBERON:0001244