sympathetic nervous system

Từ điển WordNet v3.1 - WordNet Dictionary

noun

originates in the thoracic regions of the spinal cord;
opposes physiological effects of the parasympathetic: reduces digestive secretions;
speeds the heart;
contracts blood vessels
• Hypernyms:
nervous system, systema nervosum
• Part Holonyms:
autonomic nervous system, ANS
• Part Meronyms:
splanchnic nerve, solar plexus, coeliac plexus, plexus celiacus, abdominal nerve plexus,
alpha receptor, alpha-adrenergic receptor, alpha-adrenoceptor, beta receptor, beta-adrenergic receptor, beta-adrenoceptor