Short Note on Cardiac Cycle

What is Cardiac Cycle ? – Short Answer

Definition:

A Cardiac Cycle is referred to as the time period that starts from the contraction of the atria and ends at the relaxation of the ventricular. 

Phases of Cardiac Cycle

There are different phases in the cardiac cycle:

• Atrial systole
• Ventricular systole
• Atrial diastole
• Ventricular diastole

A cardiac cycle describes all the activities of the heart through one complete heartbeat—that is, through one contraction and relaxation of both the atria and ventricles.

Cardiac cycle totally revolves around the human heart, which is divisible into four chambers. Two upper chambers are auricles, while the lower two chambers are called ventricles. 

Two terms are very important in the cardiac cycle 

• Systolic (the contraction phase)
• Diastolic (the relaxation phase)

Also Check – What’s Systolic and Diastolic Blood Pressure?

Also Check – Transportation in Human Beings 

Also Check – Describe the Flow of Blood through the Heart of Human Beings