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The Heart Rate

Human Anatomy, Physiology, and Medicine. Anything human!

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The Heart Rate

Postby BioJunior » Sat Apr 30, 2011 2:26 am

How does the Sympathetic and Parasympathetic nervous systems affect the heart rate?

I know the Sympathetic increases while PNS decreases but how exactly does each system increase or decrease the heart rate?
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