Define Pacemaker. Give an example.

1.	Define Pacemaker. Give an example.
Answer» The pacemaker is a compact mass of muscle fibers which initiates each cardiac cycle, thereby setting or establishing the rate of beating-(pace) of the heart. Eg: The sinoatrial (Sinuatrial) node situated inferior to the opening of the superior vena cava.

Answer»

The pacemaker is a compact mass of muscle fibers which initiates each cardiac cycle, thereby setting or establishing the rate of beating-(pace) of the heart.

Eg: The sinoatrial (Sinuatrial) node situated inferior to the opening of the superior vena cava.

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Define Pacemaker. Give an example.

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