This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages without signing in

Septomarginal trabecula (heart, anatomy)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The septomarginal trabecula of the right ventricle, originally termed the moderator band because wrongly it was thought to limit the expansion of the chamber, is a muscular thickening extending from the interventricular septum to the base of the anterior papillary muscle. Its main function is to convey the right branch of the atrioventricular bundle of the conducting system.

The septomarginal trabecula forms the anteroinferior border between the superior, smooth outflow tract of the ventricle and the trabeculated inflow tract. At its septal attachment, it may be continuous with the supraventricular crest.


Related pages

Create an account to add page annotations

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.