Select the correct answer for each question.  Explain why you chose that answer as opposed to the others.  In other words, explain why the other choices are incorrect. If the vagal nerves to the heart were cut, the result would be that _____. The heart rate would increase by about 25 beats per minute. Parasympathetic stimulation would increase, causing a decrease in heart rate. The heart would stop, since the vagal nerves trigger the heart to contract. Pacemaker cells would cease to spontaneously depolarize.

Comprehensive Medical Terminology
4th Edition
ISBN:9781133478850
Author:Jones
Publisher:Jones
Chapter10: The Cardiovascular System
Section: Chapter Questions
Problem J3CRE
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Select the correct answer for each question.  Explain why you chose that answer as opposed to the others.  In other words, explain why the other choices are incorrect.

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

    1. The heart rate would increase by about 25 beats per minute.
    2. Parasympathetic stimulation would increase, causing a decrease in heart rate.
    3. The heart would stop, since the vagal nerves trigger the heart to contract.
    4. Pacemaker cells would cease to spontaneously depolarize.
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