The duration of atrial systole is:
Correct Answer: 0.11 second
Description: When the heart beats at a normal rate of 72/minute, duration of each cardiac cycle is about 0.8 second.
ATRIAL EVENTS
Atrial events are divided into two divisions:
Atrial systole = 0.11 (0.1) sec.
Atrial diastole = 0.69 (0.7) sec.
VENTRICULAR EVENTS
Ventricular events are divided into two divisions:
Ventricular systole = 0.27 (0.3) sec
Ventricular diastole = 0.53 (0.5) sec.
In clinical practice, the term 'systole' refers to ventricular systole and 'diastole' refers to ventricular diastole. Ventricular systole is divided into two subdivisions and ventricular diastole is divided into five subdivisions.
Category:
Physiology
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