If the vagal nerves to the heart be cut, the result would be that:?

A. the heart would stop, since the vagal nerves trigger the heart to contract

B. the heart rate would increase by about 25 beats per minute

C. the AV node would become the pacemaker of the heart

D. parasympathetic stimulation would increase, causing a lessening in heart rate

Answers:

vagus nerve tells the heart to slow down, so yea, B