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parasympathetic nervous system

DEFINITIONS OF: parasympathetic nervous system

1

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
Type of:
nervous system, systema nervosum
the sensory and control apparatus consisting of a network of nerve cells
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