One complete contraction and relaxation of the heart is called

Joint diastole

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Diastole

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Cardiac Cycle

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Systole

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

One complete cycle of contraction of the heart followed by its relaxation is called the cardiac cycle.
When cardiac muscles contract, the pressure within the heart increases, and the blood is forced out, this is called systole. When cardiac muscles relax, the pressure within the heart decreases, and the blood is forced in, this is called diastole.

So,the correct option is D.Cardiac Cycle

Suggest Corrections

Similar questions

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.

Q. What would be the heart rate of a person if the cardiac output is 5L, blood volume in the ventricles at the end of diastole is 100mL and at the end of ventricular systole is 50 mL?

Q. In a cardiac cycle, contraction phase is termed as ________ and relaxation phase is termed as _________

Q. Will the whole amount of blood in the body be pumped in one heart beat i.e.,one systole and one diastole of all the 4 chambers of heart ?

Q. Choose the correct sequence of events in the cardiac cycle:
I. Ventricular systole
II. Blood reaches ventricles
III. A-V valves closes
IV. Atrial systole
V. Semilunar valve closes
VI. Blood goes to major arteries
VII. Semilunar valve opens
VII. Ventricular diastole

Join BYJU'S Learning Program