Medical Term:

circular layer of muscular coat


Definition: the inner, circular layer of the smooth muscle of the muscular coat of a hollow viscus. Terminologia Anatomica lists circular layers of muscular coats (stratum circulare tunicae muscularis ...) of the following: 1) colon (... coli [TA]); 2) prostatic urethra (... urethrae prostaticae [TA]); 3) rectum (... recti [TA]); 4) small intestine (... intestini tenuis [TA]); 5) stomach (... gastricae [TA]); 6) urethra (... urethrae [TA]).

Synonym(s): stratum circulare tunicae muscularisTA