Epinephrine, also known as adrenaline, is a hormone and neurotransmitter that plays a crucial role in the “fight or flight” response of the sympathetic nervous system (SNS). The adrenal glands, situated on top of each kidney, produce it and release it into the bloodstream in response to stress or danger. …
DeepakRajput 
Anatomy and physiology of parasympathetic nervous system
The parasympathetic nervous system (PNS) is one of the two main divisions of the autonomic nervous system, alongside the sympathetic nervous system. While the sympathetic system is associated with the “fight or flight” response, the parasympathetic system is known for its role in promoting a “rest and digest” state. Let’s …
