PATHOLOGY MCQ
HEART
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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SA node is known by this name as it control the rate of the heartbeat
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AV node
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Purkinje fibers
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SV node
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pacemaker
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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 SA node is normally the dominant, driving pacemaker because it has the highest intrinsic rate of spontaneous automaticity.
Detailed explanation-3: -Sino-atrial node is called as the pacemaker of our heart.
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