sympathetic nervous system

Noun

1.

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

abdominal nerve plexus, alpha receptor, alpha-adrenergic receptor, alpha-adrenoceptor, ANS, autonomic nervous system, beta receptor, beta-adrenergic receptor, beta-adrenoceptor, coeliac plexus, nervous system, plexus celiacus, solar plexus, splanchnic nerve, systema nervosum