PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This known as the natural pacemaker of the heart.
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Atrioventricular node
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Sinoatrial node
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Bundle of his
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Purkinje Fibers
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Explanation:
Detailed explanation-1: -The sinus node continuously generates electrical impulses, thereby setting the normal rhythm and rate in a healthy heart. Hence, the SA node is referred to as the natural pacemaker of the heart.
Detailed explanation-2: -The natural pacemaker of the heart is the sinoatrial node (SA node). The impulse starts in the SA node.
Detailed explanation-3: -The heart’s natural pacemaker is a cluster of cells. Doctors refer to it as the sinoatrial (SA) node or sinus node. The SA node produces electrical impulses that set the heart rate and rhythm. The SA node is one of the most important tissues in the body as it initiates every heartbeat.
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