sympathetic nervous system
Stress response activator
The sympathetic nervous system is the division of the autonomic nervous system that prepares the body for action—the "fight or flight" response.
It accelerates heart rate, dilates pupils, and redirects blood flow to muscles while suppressing digestion.
It works in opposition to the parasympathetic nervous system, which governs rest and recovery.
- solar plexusAbdominal nerve network
- gut feelingInstinctive sense about something
- ANSInvoluntary function controller
- epinephrineAdrenal stress hormone
- fight or flightThreat-triggered physiological state
fight or flight response · catecholamines · stress response · adrenergic receptors · adrenaline · adrenaline rush · vasoconstriction · tachycardia · racing heart · blood pressure rise · nerve · neuron · nerve impulse · vasodilation · cardiac output · bronchodilation · hypothalamus · acute stress
- stressstress, chronic stress, acute stress, strain, stressor
- sympathetic systemfight or flight, fight or flight response, adrenergic receptors, norepinephrine, epinephrine
- escape responsesfleeing, flight, running away, escaping, escape
- psychoneuroimmunologystress response, cortisol, immune function, cytokines, stress hormones
sympathetic, nervous, system, sympathy, sympathize, sympathizer, sympathetically, unsympathetic, sympathies