19.1.07

the parasympathetic

par·a·sym·pa·thet·ic (păr'ə-sĭm'pə-thĕt'ĭk)
adj.

Of, relating to, or affecting the parasympathetic nervous system: parasympathetic activity; parasympathetic agents.

...the parasympathetic nervous system has one meaning:

[It] 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

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