HyperDic: sympathetic_nervous_system

English > 1 sense of the expression sympathetic nervous system:
NOUNbodysympathetic nervous systemoriginates in the thoracic regions of the spinal cord
English > sympathetic nervous system: 1 sense > noun 1, body
Meaningoriginates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels.
Part ofautonomic nervous system, ANSThe part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands
Partsalpha receptor, alpha-adrenergic receptor, alpha-adrenoceptorreceptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities (such as vasoconstriction and relaxation of intestinal muscles and contraction of smooth muscles)
beta receptor, beta-adrenergic receptor, beta-adrenoceptorreceptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities (such as vasodilation and increased heart beat)
solar plexus, coeliac plexus, plexus celiacus, abdominal nerve plexusA large plexus of sympathetic nerves in the abdomen behind the stomach
splanchnic nerveAny of several nerves of the sympathetic part of the autonomic nervous system that innervate viscera and blood vessels
Broadernervous system, systema nervosumThe sensory and control apparatus consisting of a network of nerve cells
Spanishsistema nervioso simpático
Catalansistema nerviós simpàtic
Adjectivessympatheticof or relating to the sympathetic nervous system

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