Septomarginal trabecula; Moderator band - Trabecula septomarginalis

Da Vinci's


A muscular band, well-marked in sheep and some other animals, frequently extends from the base of the anterior papillary muscle to the ventricular septum. From its attachments it may assist in preventing overdistension of the ventricle, and so has been named the moderator band (Septomarginal trabecula).

This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from

Anatomical hierarchy

General Anatomy > Cardiovascular system > Heart > Right ventricle > Septomarginal trabecula; Moderator band