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.
The sympathetic trunk is a pair of structures alongside the spinal cord that makes up a key component of the sympathetic nervous system. It consists of chains of nerve cells linked together, with periodically spaced ganglia, clusters of sympathetic nerve cells used for information processing. Also known as the ganglionic cord or sympathetic chain, these structures run from the skull to the tailbone and carry a variety of signals to and from the viscera of the body.