why do we call our heart myogenic
Answers
Answer:The SA node has the inherent capability to generate a wave of contraction and also controls the heartbeat which is why it is termed as the pacemaker. As the heartbeat is triggered by the sinoatrial node, and impulse of contraction originates in the heart, the human heart is known as myogenic.
Explanation:
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.