Question

Explain Cardiac cycle?

Answer 1

Answer :-

In general terms, the cardiac cycle can be defined as the sequence of events that occur during one heartbeat.

Extra Infomation :-

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• The portion of the cardiac cycle in which contraction occurs, is known as "Systole".

• The portion of the cardiac cycle in which relaxation occurs, is known as "Diastole".

• A cardiac cycle consists of systole + diastole of atria and systole + diastole of the ventricles.

• When the heart beats at the rate of 75 beats / minute, a cardiac cycle lasts for about 0.8 seconds.

• The rate of heartbeat varies a great deal among different animals.

• In general, the larger is the animal, the lower is its rate of heartbeat.

Answer 2

Answer:

Some points on cardiac cycle are :-

• The cardiac events that occur from the beginning of our heart beat to beginning of the next is called as cardiac cycle.

• Human heart is developed in the first month of pregnancy during the embryonic stage .

• Heart beat first begins from the time of embryonal development .

• Once heartbeat starts then it continues till death .

• Normal heart beat rate of human is 72 times per minute.

• The duration of cardiac cycle is for 0.8 seconds. Or it is the reverse ratio of our heartbeat per min .