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The atrioventricular bundle passes through which structure before dividing into branches?
AThe interatrial septum
BThe arch of the aorta
CThe interventricular septum
DThe coronary sinus
Answer & Solution
Correct answer: C. The interventricular septum
1. Arising from the AV node, the atrioventricular bundle is also called the bundle of His.
2. It proceeds through the interventricular septum before dividing.
3. It then splits into the left and right bundle branches on their way to the apex.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 19 "The Cardiovascular System: The Heart", section 19.2 Cardiac Muscle and Electrical Activity_
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