Absolute period when whole heart is in diastole is______________?
Correct answer: D. 0.4 secondsExplore Anatomy Models
- A. 0.7 seconds
- B. 0.3 seconds
- C. 0.7 seconds
- D. 0.4 secondsExplore Anatomy Models
Explanation
At a heart rate of about 75 beats per minute, atrial systole lasts 0.1 seconds and ventricular systole 0.3 seconds, leaving about 0.4 seconds of joint diastole. Options a and c are duplicates and do not represent this phase.
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