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 parasympathetic nervous system (PNS) controls homeostasis and the body at rest and is responsible for the body's rest and digest function. The sympathetic nervous system (SNS) controls the body's responses to a perceived threat and is responsible for the fight or flight response.he sympathetic nervous system (SNS) is one of two main divisions of the autonomic nervous system (ANS). Its general action is to mobilize the body's fight-or-flight response.