- fight-or-flight reaction
- /fuyt"awr fluyt"/, Physiol., Psychol.the response of the sympathetic nervous system to a stressful event, preparing the body to fight or flee, associated with the adrenal secretion of epinephrine and characterized by increased heart rate, increased blood flow to the brain and muscles, raised sugar levels, sweaty palms and soles, dilated pupils, and erect hairs. Also called fight-or-flight response.
Useful english dictionary. 2012.
Look at other dictionaries:
fight-or-flight reaction — /fuyt awr fluyt /, Physiol., Psychol. the response of the sympathetic nervous system to a stressful event, preparing the body to fight or flee, associated with the adrenal secretion of epinephrine and characterized by increased heart rate,… … Universalium
fight-or-flight reaction — alarm r … Medical dictionary
fight-or-flight — adjective Date: 1973 relating to, being, or causing physiological changes in the body (as an increase in heart rate or dilation of bronchi) in response to stress < epinephrine is a fight or flight hormone > < a fight or flight reaction > … New Collegiate Dictionary
Fight-or-flight response — Refimprove|date=February 2007The fight or flight response, also called the fright , fight or flight response, hyperarousal or the acute stress response, was first described by Walter Cannon in 1915. [… … Wikipedia
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fight-or-flight response — /faɪt ɔ ˈflaɪt rəspɒns/ (say fuyt aw fluyt ruhspons) noun the reaction to danger that animals experience when they are presented with two options, that of standing their ground or of running away, both of which trigger specific physiological… … Australian English dictionary
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fight-or-flightreaction — fight or flight reaction (fītʹôr flītʹ) n. A set of physiological changes, such as increases in heart rate, arterial blood pressure, and blood glucose, initiated by the sympathetic nervous system to mobilize body systems in response to stress. *… … Universalium
reaction — 1. The response of a muscle or other living tissue or organism to a stimulus. 2. The color change effected in litmus and certain other organic pigments by contact with substances such as acids or alkalies; also the property that such substances… … Medical dictionary
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