HISTOLOGY
BLOOD VESSELS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The duration of the pause in the work of the heart is:
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0, 5
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0, 7
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0, 2
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0, 4
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Explanation:
Detailed explanation-1: -Sinus pause or arrest where there are pauses of 3 seconds or more without atrial activity. This is often rescued by an escape rhythm which can be atrial, junctional and ventricular in origin. It usually reflects a failure of P cells to generate the action potential.
Detailed explanation-2: -Assuming a healthy heart and a typical rate of 70 to 75 beats per minute, each cardiac cycle, or heartbeat, takes about 0.8 second to complete the cycle.
There is 1 question to complete.