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Question

The duration of cardiac cycle is

A
0.8 sec
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B
0.8μ sec
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C
0.08 sec
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D
0.008 sec
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Solution

The correct option is A 0.8 sec
The normal duration of the cardiac cycle is 0.8 second. Atrial systole - 0.1 sec. Atrial diastole - 0.7 sec. Ventricular systole - 0.3 sec. Ventricular diastole - 0.5 sec. A single cycle of cardiac activity can be divided into two basic phases - diastole and systole.

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