Question

Each cardiac cycle takes about second.
(A) 0.8
(B) 0.7
(C) 0.1
(D) 0.4

Answer 1

Dear Student,

◆ Answer - (A)

Each cardiac cycle takes about 0.8 second.

● Cardiac cycle -

• Cardiac cycle is rhythmic expansion and contraction of the heart.
• Heart expands to receive blood from veins is called cardiac diastole.
• Heart contracts to pump the blood into arteries is called cardiac systole.
• Duration of cardiac cycle is total 0.8 s (0.3 s ventricular systole and 0.5 s ventricular diastole).

Thanks dear. Hope this helps you..

Answer 2

Each cardiac cycle completes in 0.8 seconds.

Option A.

Explanation:

• The cardiac cycle comprises of two phases as systole and diastole of auricular and ventricular components.
• In the contraction phase, Atrial/Auricular systole takes 0.1 second and Ventricular systole takes 0.3 seconds whereas in the relaxation phase.
• Auricular diastole takes 0.7 seconds and Ventricular diastole takes 0.5 seconds.
• In the systole the ventricles present in the heart are relaxed and the heart is filled with blood.
• In the second phase, the ventricles contract and heart pumps the blood to the organ.

Learn more about the Cardiac cycle

What is cardiac cycle?

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Name the following: The phase of cardiac cycle in which the auricles contract.

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