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

question 50

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) parasympathetic stimulation would increase, causing a decrease in heart rate
• C) the atrioventricular (AV) node would become the pacemaker of the heart
• D) the heart would stop, since the vagal nerves trigger the heart to contract