IGNOU MFN 1 2026 2027 - What do you understand by the term ‘cardiac cycle’?

Question

What do you understand by the term ‘cardiac cycle’?

17 Jul 2026

Answer :

Word Count : 736

The cardiac cycle refers to the complete sequence of events that occurs in the heart during one heartbeat. It includes the contraction and relaxation of the atria and ventricles, resulting in the movement of blood through the heart and into the circulation. The cardiac cycle begins with the initiation of an electrical impulse in the sinoatrial (SA) node and ends just before the next heartbeat begins. In a healthy adult with a heart rate of about 75 beats per minute, one cardiac cycle lasts approximately 0.8 seconds. Understanding the cardiac cycle is fundamental in applied physiology because it explains the mechanical and electrical functions of the heart and their relationship with blood flow, blood pressure, and tissue perfusion. The cardiac cycle is divided into two major phases: systole and diastole. Systole is the phase of contraction during which blood is pumped out of the heart, while diastole

__________ _______ __________ ________ ______ ____ _____ __________ ____.
______ __________ ____ _______ _______ _______ __________ _____.
____ ___ _______ ________ _____ ________.
_______ ______ _________ _________ ___.
_____ ________ ________ _______ _________ ___ _________ ____ ______.
__________ __________ ______ ____ ____ _____ ___.
___ ___ _______ _________ _____ __________ _______.
________ __________ __________ ______ _______ _______.
______ _________ _______ ___ ______ _______ _______ _____ _________ ___.
___ __________ _____ _______ ________ _____ ___ _________.
_________ _____ __________ ________ ___ _____.
__________ ________ ______ __________ ______ __________ ___ _________ __________ ___.
_____ ________ _____ ___ _______ ________ __________ ________ _____.
____ ____ _____ __________ _____ ________ _____.
_____ __________ _________ ___ ____.
__________ _____ __________ ________ ______ _______ __________ ________ ________ ____ __________ ______.
_________ _________ ______ _________ ____ ________ ___ _______ ______ _____.
___ ________ ___ _______ __________ ________.
_______ _____ _____ ___ __________ ___.
_________ ________ ___ _______ ____ ________.
_______ ____ _________ ____ _______ ________ ______ ___ __________ _______ ___.
____ ______ _____ _______ _______ ____ ______ ___ _______.
_____ ________ ____ _____ _________ __________ __________ _____ ____.
___ _______ _________ ____ ____ _____ _______ ___ _______ _____ _________.
________ __________ ___ _________ ___.
________ ________ ____ __________ ______ _________ _________.
_______ ________ ______ _______ _______ _________ ______ _________ ________ _________ _________.
_______ _________ ________ ____ ____.
_______ __________ _________ _____ ______.
_____ _________ _______ ________ ______ ______ ___ _______ _____ _____.
____ _____ ___ ___ _______ _____ _______ _____ __________.
_______ ____ ___ _______ ____ _________ _____ ______ _____ _____ _________ ________.
_________ __________ _____ ____ __________ ________ ___.
________ ______ _____ _________ ______ ____ ________ _________ _____.
______ _________ __________ _____ _______ _________ ________.
_____ __________ _________ __________ _______ _____ __________ ________.
_______ ______ ___ _____ _______ _________ ______ ________ _______ ________ _______ ______.
___ _______ __________ _____ ___ __________ _______ _________ ___ ________ ____.
________ _________ ____ __________ ___ ______ _____ _____ ______.
____ __________ _____ ______ ______ __________ _______.
___ ________ ___ __________ __________ ____ ___ __________ ___ ____ ____ ________.
______ _____ __________ ___ ___ __________.
_______ _________ __________ __________ ____ ________ _____.
____ ____ _________ _____ _______ ________ _____.
________ ___ ________ _____ ________ ____ ________ ______ ______ ___.
_________ __________ ______ _________ ________ ________ ___ ______ ____ _________ _______.
____ ___ ______ _________ ______ ___ ___ _______ __________.
_________ _____ _______ _______ _______ _____ ____ _____ ________.
____ ___ _____ ______ ______ _______ __________.
________ ______ _________ ______ ________.
_________ ________ ___ ____ ____.
______ _________ ___ ___ ___ __________ _______ ____ ________.
___ _________ __________ _______ ______ _____.
________ _____ _____ _________ _____ ____ ________ ____ ______.
_____ ___ ___ __________ _______ _______ _______ _________ _____ ___ _________ ____.
_______ _____ ___ ___ _________ ___ ________.
______ _________ ______ ___ _______ _______.
___ ___ _____ ______ __________ ___.
______ __________ ____ ______ ______ ___.
____ ___ ___ _______ _________.
_____ ________ _____ __________ _______ ________ _______ ___ _______ _______ ____.
_____ __________ ___ ___ ____ __________ _____ ______ _________ __________ _______.
________ _________ __________ _________ ______ ___ __________ _____ ___ __________ ______.
____ _____ ________ _____ ____ _________ ______ ___ ________ __________ __________.
________ ____ ________ _________ ________ _______ _______.
_______ ______ _______ _________ ________ ____ _______ _________.
__________ ___ ______ _____ ______ _______ _______ ___ _____ ___ ____ __________.
_______ _________ _________ ____ _________ ______.
_______ ____ __________ ________ ______ __________ ________ _______ _____ _________.
____ ______ ________ _________ _______ ________ ___ _____ ______ ________ ________.
_______ _____ _______ _______ ______ _________ ______ ____ ___ ________.
___.

IGNOU ACADEMY

Your IGNOU journey, made easier.

Solved Assignments
Study Notes
Guess Papers
Question Papers

Call Us WhatsApp

STUDY • PREPARE • SUCCEED

Skip in 10

IGNOU Solved Assignments Assignments Ignou Projects Project Previous Year Solved Exam Papers Notes Notes Sample Question Papers Sample Question Papers