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parasympathetic autonomic nervous system |
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parasympathetic autonomic nervous system, n that part of the involuntary nervous system which balances the sympathetic nervous system by relaxing and slowing the heart rate, digestion; causes pupil dilation and other responses to ‘fight or flight.’ Also called relaxation response. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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