autonomic nervous system

Noun
  1. The part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands (synset 105512183)
    is a type of: neural structure - a structure that is part of the nervous system
    has:
    • autonomic ganglion - any of the ganglia of the autonomic system whose unmyelinated fibers innervate the internal organs
    • sympathetic nervous system - originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels
    • parasympathetic, parasympathetic nervous system - 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
    is a part of: nervous system, systema nervosum - the sensory and control apparatus consisting of a network of nerve cells
    same as: ans

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