Medical Definition of System, parasympathetic nervous

System, parasympathetic nervous: A part of nervous system that slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles. The parasympathetic nervous system together with the sympathetic nervous system (that accelerates the heart rate, constricts blood vessels, and raises blood pressure) constitute the autonomic nervous system.

CONTINUE SCROLLING OR CLICK HERE FOR RELATED SLIDESHOW

SLIDESHOW

Brain Food Pictures: What to Eat to Boost Focus See Slideshow

Health Solutions From Our Sponsors

Reviewed on 12/27/2018