Fun Facts about the name Lany. How many people with the first name Lany have been born in the United States? From 1880 to 2015, the Social Security Administration has recorded 46 babies born with the first name Lany in the United States.
Medical Definition of Sympathetic nervous system. Sympathetic nervous system: A part of the nervous system that serves to accelerate the heart rate, constrict blood vessels, and raise blood pressure. The sympathetic nervous system and the parasympathetic nervous system constitute the autonomic nervous system. Last Editorial Review: 5/13/2016.
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.