moderator band

sep·to·mar·gi·nal tra·bec·u·la

[TA]
one of the trabeculae carneae in the right ventricle of the heart; it carries part of the right branch of the AV bundle from the septum to the anterior papillary muscle on the opposite wall of the ventricle.

moderator band

[mod′ərā′tər]
Etymology: L, moderari, to restrain; AS, bindan, to bind
a thick bundle of muscle in the central part of the right ventricle of the heart. Missing in some individuals and varying in size in others, it usually contains part of the atrioventricular conduction bundle. Also called trabecula septomarginalis.

moderator band

see septomarginal trabecula.
References in periodicals archive ?
The right side of the heart (right ventricle) can have a large moderator band, which is a benign structure frequently seen toward the tip of the ventricle especially when it is enlarged.