If the Vagal Nerves to the Heart Were Cut, the Result

Multiple Choice

If the vagal nerves to the heart were cut, the result would be that ___________.

A) the heart rate would increase by about 25 beats per minute
B) the atrioventricular (AV) node would become the pacemaker of the heart
C) parasympathetic stimulation would increase, causing a decrease in heart rate
D) the heart would stop, since the vagal nerves trigger the heart to contract