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Your sympathetic nervous system is the network of nerves behind the “fight-or-flight” response. It helps your brain manage body systems in times of stress or danger.
The sympathetic nervous system (SNS or SANS, sympathetic autonomic nervous system, to differentiate it from the somatic nervous system) is one of the three divisions of the autonomic nervous system, the others being the parasympathetic nervous system and the enteric nervous system.
The sympathetic nervous system is a branch of the autonomic nervous system that prepares the body for "fight or flight" responses during stressful situations. It increases heart rate, dilates pupils, and inhibits digestion, among other functions, to mobilize the body's resources for immediate action.
The clinical significance of the sympathetic nervous system is vast as it affects many organ systems. Of the many physiological and pathological processes, pheochromocytoma, erections and priapism, diabetic neuropathy, and orthostatic hypotension are described below.
This article discusses the anatomy, definitions and function of the sympathetic nervous system, including clinical aspects. Learn this topic now at Kenhub!
Sympathetic nervous system, division of the nervous system that produces localized adjustments (such as sweating as a response to an increase in temperature) and reflex adjustments of the cardiovascular system.
The sympathetic nervous system is a sub-system of your peripheral nervous system. Whenever you touch, taste, or see something, it’s because nerves are sending impulses to your brain...
The sympathetic nervous system (SNS) is one of the two main divisions of the autonomic nervous system (ANS). It acts in conjunction with the parasympathetic nervous system (PNS) to maintain homeostasis within the body. The collective action of the sympathetic nervous system can be described as “fight or flight”.It dominates during periods of stress or urgency and helps to rapidly prepare ...
The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal. It contains three anatomically distinct divisions: sympathetic, parasympathetic, and enteric.
Structurally, the sympathetic nervous system consists of many nerve cells found in the peripheral and central nervous systems. This allows organisms the ability to activate many different responses at once, leading to a coordinated flight or fight response.