What is another word for sympathetic nervous system?
Pronunciation: [sˌɪmpəθˈɛtɪk nˈɜːvəs sˈɪstəm] (IPA) 
The sympathetic nervous system is an essential part of our body's automatic response mechanism to threatening situations. It is responsible for increasing our heart rate, dilating our pupils, widening our airways, and releasing adrenaline, among other responses. The term "fight or flight" is often used to describe the sympathetic nervous system's actions. There are several synonyms to describe this system that are often used interchangeably, including the thoracolumbar system, the adrenergic system, and the sympathetic adrenergic system. While these terms may differ slightly in their connotation, they all refer to the same set of physiological responses that keep us alert and prepared in stressful situations.
