MCQ
Contraction of heart is:
- ADiastole
- BSystole
- CJoint diastole
- DNone of the above
✓
Answer
- Systole
Explanation:
Systole is defined as the ventricular contraction of heart which occurs between the first and second heart sounds of the cardiac cycle. There is pumping of blood into the aorta and pulmonary trunk and lasts for 0.3 - 0.4 second. During systole arterial blood pressure is maximum.
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