In which chamber is the moderator band located?

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Multiple Choice

In which chamber is the moderator band located?

Explanation:
The moderator band, or septomarginal trabecula, is a muscular bridge inside the right ventricle. It runs from the interventricular septum to the base of the anterior papillary muscle and contains part of the conducting system (the right bundle branch). This arrangement speeds conduction to the anterior wall and helps coordinate papillary muscle contraction during systole, preventing distortion of the tricuspid valve. Its presence is specific to the right ventricle, not found in the left ventricle, left atrium, right atrium, or the aorta.

The moderator band, or septomarginal trabecula, is a muscular bridge inside the right ventricle. It runs from the interventricular septum to the base of the anterior papillary muscle and contains part of the conducting system (the right bundle branch). This arrangement speeds conduction to the anterior wall and helps coordinate papillary muscle contraction during systole, preventing distortion of the tricuspid valve. Its presence is specific to the right ventricle, not found in the left ventricle, left atrium, right atrium, or the aorta.

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