Location:
The moderator band is located in the right ventricular apex that connects the interventricular septum to the anterior papillary muscle. When looking within the heart it appears as any other trabecula would except that the moderator band does not seem to be attached to one single side, but rather crossing the lower portion of the right ventricular chamber.

Function:
The function of this anatomy is to act as a primary conduction path in to the free wall originating from the right bundle branch