PATHOLOGY MCQ
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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This node sets the pace of your heart beat
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SA node
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AV node
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Either A or B
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None of the above
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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: -SA node likes to pace at 60-100bpm. atrial foci normally have an intrinsic rate of 60-80bpm.
Detailed explanation-3: -Sinoatrial node: 60 to 100 beats per minute. Atria: less than 60 beats per minute. Atrioventricular node: 40 to 60 beats per minute. Ventricles: 20 to 40 beats per minute.
There is 1 question to complete.