Ain't never felt this way. Can't get enough so stay with me. It's not like we got big plans. Let's drive around town holding hands. And you need to know. You're the only one, alright alright. And you need to know. That you keep me up all night, all night.
Definition of SYMPATHETIC NERVOUS SYSTEM. : the part of the autonomic nervous system that contains chiefly adrenergic fibers and tends to depress secretion, decrease the tone and contractility of smooth muscle, and increase heart rate â compare parasympathetic nervous system.See sympathetic nervous system defined for kids.ADVERTISEMENT.efinition of SYMPATHETIC NERVOUS SYSTEM. : the part of the autonomic nervous system that contains chiefly adrenergic fibers and tends to depress secretion, decrease the tone and contractility of smooth muscle, and increase heart rate â compare parasympathetic nervous system. See sympathetic nervous system defined for kids. ADVERTISEMENT.
There are two divisions in the autonomic nervous system; i.e. sympathetic nervous system and parasympathetic nervous system. Both systems usually act on the same organ and generate the same action potentials, yet their functions are different and oppose each other. Sympathetic Nervous System. Sympathetic nervous system is the nerve network made up of short preganglionic axons that extend to ganglia situated near thoracic and lumbar regions of spinal cord, and of long postganglionic neurons extending from ganglia to target organs.