Effects of the storage conditions on the stability of natural and synthetic cannabis in biological matrices for forensic toxicology analysis: An update from the literature

Moderator band
Interior of right side of heart. (Septomarginal trabecula visible at bottom right, but not labeled.)
Details
Identifiers
Latin	trabecula septomarginalis
TA98	A12.1.02.020
TA2	4050
FMA	7272
Anatomical terminology [edit on Wikidata]

The septomarginal trabecula (also known as moderator band) is a muscular band of heart tissue found in the right ventricle. It is well-marked in sheep and some other animals, and frequently extends from the base of the anterior papillary muscle to the ventricular septum.

This septomarginal trabecula is important because it carries part of the right bundle branch of the AV bundle of the conduction system of the heart to the anterior papillary muscle. This shortcut across the chamber of the ventricle seems to facilitate conduction time, allowing coordinated contraction of the anterior papillary muscle; (see electrical conduction system of the heart).

From its attachments it was thought to prevent overdistension of the ventricle, and was named the "moderator band".

The moderator band is often used by radiologists and obstetricians to more easily identify the right ventricle in prenatal ultrasound.

See also

• Trabecula

External links

• . GPnotebook https://www.gpnotebook.co.uk/simplepage.cfm?ID=1328873532. {{cite web}}: Missing or empty |title= (help)
• Template:EMedicineDictionary
• Videos and photos of moderator band
• Photo of "septomarginal trabiculation" at acc.org
• Photo with caption "moderator band" at tjc.edu
• Sonogram

♥