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Question

The cardiac cycle is the sequence of events that occurs when the heart beats. In the __(i)_, the heart ventricles ___(ii)___ and helps fill the heart with blood. In the __(iii)_____ the ventricles ___ _(iv)____and pump the blood to the body through the arteries.


A

(i) Diastole phase, (ii) Relax, (iii) Systole phase, (iv) Contract

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B

(i)Systole phase, (ii)Contract, (iii) Diastole phase, (iv) Relax

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C

(i)Diastole phase, (ii) Contract, (iii)Systole phase, (iv) Relax

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D

(i) Systole phase, (ii) Relax, (iii)Diastole phase, (iv)Contract

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Solution

The correct option is A

(i) Diastole phase, (ii) Relax, (iii) Systole phase, (iv) Contract


The cardiac cycle is the sequence of events that occurs when the heart beats. In the diastole phase, the heart ventricles relax and helps fill the heart with blood. In the systole, the ventricles contract and pump the blood to the body through the arteries.The ventricular systole and diastole, are considered to be the systole and diastole of the heart beat.


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