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The wall dividing the two lower chambers of the heart is the:

AInterventricular septum
BInterventional septum
CIntervertebral septum
DInterstitial septum
Answer & Solution
Correct answer: A. Interventricular septum
1. A septum is a partition dividing chambers. 2. This one lies between the two ventricles. 3. It is the interventricular septum. _Source: OpenStax Anatomy and Physiology 2e, Chapter 19, The Cardiovascular System: The Heart._
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