parasympathetic nervous system

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WordNet Dictionary
	Definition:		[n]  originates in the brain stem and lower part of the spinal cord; opposes physiological effects of the sympathetic nervous system: stimulates digestive secretions; slows the heart; constricts the pupils; dilates blood vessels
	Synonyms:		parasympathetic
	See Also:		ANS, autonomic nervous system, nervous system, systema nervosum