Explain Cardiac cycle?

Share with your friends

Saman Ahmad answered this

Kindly refer to the following link.

https://www.meritnation.com/ask-answer/question/pls-provide-a-flow-chart-for-cardiac-cycle/body-fluids-and-circulation/3088817

View Full Answer

Ishan Goyal answered this

Cardiac Cycle:- It is the involuntary process of passing of blood through the body in a regulated manner from the pumping organ (heart) to the body and then its returning back to the pumping organ (this is one cycle)

Ishan Goyal answered this

N�j�bi�rW

Sneha Chopra answered this

hi... I found a great online chat room, there I met many good friends who are very friendly and helpful and they all are from meritnation. Now everyday I use to go to the chat room, along with learning Im also having good time with lots of good friends. below im giving you the link of chat room.

http://meritnationeducationalchat.weebly.com/

-9

Ramya answered this

The cardiac cycle is the sequence of events in one heartbeat.

It can be divided into three stages:

1) Diastole: the chambers of the heart (atria and ventricles) are relaxed and filling up with blood from the veins. The atrioventricular valves (bicuspid on the left and tricuspid on the right) are open and the semilunar valves (pulmonary and aortic) are closed. This stage lasts for about 0.4 second.

2) Atrial systole: the atria contract and top up the ventricles. This takes about 0.1 second.

3) Ventricular systole: the ventricles contract and pump blood out of the heart into the arteries. During this stage the atrioventricular valves are closed and the semilunar valves are open. This takes about 0.3 second.

The total cycle takes about 0.8 second while the subject is resting. This gives a heart rate of about 75 beats per minute.