Why does the transplanted heart beats at higher rate than normal?

1.	Why does the transplanted heart beats at higher rate than normal?
Answer» 1. The transplanted heart beats at higher rate than normal (about 100 to 110 beats per minute) because the nerves leading to the heart are cut during the operation. These nerves stimulate the pacemaker i.e. Sinoatrial node. 2. The new heart also responds more slowly to exercise and does not increase its rate as quickly as before.

Answer»

1. The transplanted heart beats at higher rate than normal (about 100 to 110 beats per minute) because the nerves leading to the heart are cut during the operation. These nerves stimulate the pacemaker i.e. Sinoatrial node.

2. The new heart also responds more slowly to exercise and does not increase its rate as quickly as before.

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Why does the transplanted heart beats at higher rate than normal?

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