pectinate muscle


Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to pectinate muscle: papillary muscle, Right auricle

pectinate muscle

A ridge of myocardium on the inner wall of either atrium of the heart.
See also: muscle
References in periodicals archive ?
In comparison to 2D, 3D echo can more efficiently differentiate a clot from pectinate muscles in the LAA, which can mimic a thrombus resulting in patient mismanagement.