Question

why heart is called myogenic?

Answer 1

Since the heart beat is initiated by the SA node and the impulse of contraction originates in the heart itself, the humanheart is termed myogenic. The hearts of vertebrates and molluscs are alsomyogenic. ... In the human heart, contraction is initiated by a special modified heart muscle known as sinoatrial node.

Answer 2

The meaning of ‘myo’ is ‘muscle’, and ‘genic’ is ‘originating from’. The human heart’s contraction is activated by a specially modified heart muscle known as the sinoatrial node that is located in the right atrium. The SA node has the inherent power of generating a wave of contraction and controlling the heartbeat. Thus, it is known as the pacemaker. As the SA node initiates a wave of contraction and controls the heartbeat, the contraction’s impulse originates in the heart itself; the human heart is termed myogenic. The hearts of vertebrates and molluscs are also myogenic.