Question

why do we call our heart myogenic for 5 marks​

Answer 1

Answer:

• In the human heart, contraction is initiated by a special modified heart muscle known as sinoatrial node.
• It is located in the right atrium. The SA node has the inherent power of generating a wave of contraction and controlling the heart beat.
• Hence, it is known as the pacemaker. Since the heart beat is initiated by the SA node and the impulse of contraction originates in the heart itself, the human heart is termed myogenic.
• The hearts of vertebrates and molluscs are also myogenic

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Answer 2

Answer:

Explanation: because in human heart functioning which is contraction and relaxation is initiated by muscles.so it is myogenic