ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Where is the AV node?
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in the left atrium wall
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junction between the atria and ventricles
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in the right atrium wall
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in the ventricles
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Explanation:
Detailed explanation-1: -The atrioventricular (AV) node is the “gatekeeper” between the atria and the ventricles and is located at the AV junction on the right side of the heart (Figure 1A). The primary role of the node is to conduct the action potential from the atria to the ventricles.
Detailed explanation-2: -The AV node lies at the lower back section of the interatrial septum near the opening of the coronary sinus, and conducts the normal electrical impulse from the atria to the ventricles.
Detailed explanation-3: -The atrioventricular node is the only route of electrical continuity between the atria and ventricles and is a slowly propagating structure.
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