What would happen to a mammalian heart if the nerves leading to it were severed?

Question

Quizplus · Accepted Answer

The heart contains pacemaker cells that automatically generate impulses to regulate the heartbeat. These pacemaker cells are influenced by the autonomic nervous system. If the nerves leading to the heart were severed, the autonomic nervous system would no longer be able to influence the pacemaker cells. However, the pacemaker cells would still generate impulses, allowing the heart muscle to continue to contract. The rate of contraction may change because it would no longer be regulated by the autonomic nervous system.

What Would Happen to a Mammalian Heart If the Nerves