Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Download
Faster access than browser!
 

Fight-or-flight response

Index Fight-or-flight response

The fight-or-flight response (also called hyperarousal, or the acute stress response) is a physiological reaction that occurs in response to a perceived harmful event, attack, or threat to survival. [1]

102 relations: Acceleration, Acetylcholine, Acute stress reaction, Adipose tissue, Adrenal gland, Adrenal medulla, Adrenaline, Adrenocorticotropic hormone, Aggression, American Journal of Physiology, Amygdala, Anxiety, Anxiety disorder, Appleton-Century-Crofts, Auditory exclusion, Bleeding, Blood pressure, Blood sugar level, Blood vessel, Body reactivity, Catecholamine, Cell (biology), Chromatophore, Coagulation, Coping (psychology), Cortisol, Daniel Reisberg, Defense physiology, Digestion, Dopamine, Ectotherm, Emotional dysregulation, Erection, Estrogen, Evolutionary psychology, Fatty acid, Flight zone, Flushing (physiology), Freezing behavior, Glucose, Glycogen, Goose bumps, Hearing loss, Heart arrhythmia, Heart rate, Hemodynamics, Henry Gleitman, Homeostasis, Hypothalamic–pituitary–adrenal axis, Hypothalamus, ..., Immune system, Injury, Lacrimal gland, Lion, Medulla oblongata, Metabolism, Muscle, Muscle tone, Mydriasis, Norepinephrine, Organism, Pallor, Panic attack, Parasympathetic nervous system, Perceived control, Peripheral vision, Phobia, Pituitary gland, Predatory imminence continuum, Psychological trauma, Pupillary response, Reflex, Respiratory rate, Robert Sapolsky, Saliva, Serotonin, Sexual arousal, Small intestine, Social anxiety, Social anxiety disorder, Sphincter, Spinal cord, Stomach, Stress (biology), Sympathetic nervous system, Tachypnea, Tears, Tend and befriend, Testosterone, The Relaxation Response, Tremor, Tunnel vision, Urinary bladder, Urination, Vasoconstriction, Vasodilation, Vertebrate, W. W. Norton & Company, Walter Bradford Cannon, Workplace bullying, Yerkes–Dodson law, Zebra. Expand index (52 more) »

Acceleration

In physics, acceleration is the rate of change of velocity of an object with respect to time.

New!!: Fight-or-flight response and Acceleration · See more »

Acetylcholine

Acetylcholine (ACh) is an organic chemical that functions in the brain and body of many types of animals, including humans, as a neurotransmitter—a chemical message released by nerve cells to send signals to other cells.

New!!: Fight-or-flight response and Acetylcholine · See more »

Acute stress reaction

Acute stress reaction (also called acute stress disorder, psychological shock, mental shock, or simply shock) is a psychological condition arising in response to a terrifying or traumatic event, or witnessing a traumatic event that induces a strong emotional response within the individual.

New!!: Fight-or-flight response and Acute stress reaction · See more »

Adipose tissue

In biology, adipose tissue, body fat, or simply fat is a loose connective tissue composed mostly of adipocytes.

New!!: Fight-or-flight response and Adipose tissue · See more »

Adrenal gland

The adrenal glands (also known as suprarenal glands) are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol.

New!!: Fight-or-flight response and Adrenal gland · See more »

Adrenal medulla

The adrenal medulla (medulla glandulae suprarenalis) is part of the adrenal gland.

New!!: Fight-or-flight response and Adrenal medulla · See more »

Adrenaline

Adrenaline, also known as adrenalin or epinephrine, is a hormone, neurotransmitter, and medication.

New!!: Fight-or-flight response and Adrenaline · See more »

Adrenocorticotropic hormone

Adrenocorticotropic hormone (ACTH, also adrenocorticotropin, corticotropin) is a polypeptide tropic hormone produced by and secreted by the anterior pituitary gland.

New!!: Fight-or-flight response and Adrenocorticotropic hormone · See more »

Aggression

Aggression is overt, often harmful, social interaction with the intention of inflicting damage or other unpleasantness upon another individual.

New!!: Fight-or-flight response and Aggression · See more »

American Journal of Physiology

The American Journal of Physiology is a peer-reviewed scientific journal on physiology published by the American Physiological Society.

New!!: Fight-or-flight response and American Journal of Physiology · See more »

Amygdala

The amygdala (plural: amygdalae; also corpus amygdaloideum; Latin from Greek, ἀμυγδαλή, amygdalē, 'Almond', 'tonsil') is one of two almond-shaped groups of nuclei located deep and medially within the temporal lobes of the brain in complex vertebrates, including humans.

New!!: Fight-or-flight response and Amygdala · See more »

Anxiety

Anxiety is an emotion characterized by an unpleasant state of inner turmoil, often accompanied by nervous behaviour such as pacing back and forth, somatic complaints, and rumination.

New!!: Fight-or-flight response and Anxiety · See more »

Anxiety disorder

Anxiety disorders are a group of mental disorders characterized by significant feelings of anxiety and fear.

New!!: Fight-or-flight response and Anxiety disorder · See more »

Appleton-Century-Crofts

Appleton-Century-Crofts, Inc. was a division of the Meredith Publishing Company.

New!!: Fight-or-flight response and Appleton-Century-Crofts · See more »

Auditory exclusion

Auditory exclusion is a form of temporary loss of hearing occurring under high stress.

New!!: Fight-or-flight response and Auditory exclusion · See more »

Bleeding

Bleeding, also known as hemorrhaging or haemorrhaging, is blood escaping from the circulatory system.

New!!: Fight-or-flight response and Bleeding · See more »

Blood pressure

Blood pressure (BP) is the pressure of circulating blood on the walls of blood vessels.

New!!: Fight-or-flight response and Blood pressure · See more »

Blood sugar level

The blood sugar level, blood sugar concentration, or blood glucose level is the amount of glucose present in the blood of humans and other animals.

New!!: Fight-or-flight response and Blood sugar level · See more »

Blood vessel

The blood vessels are the part of the circulatory system, and microcirculation, that transports blood throughout the human body.

New!!: Fight-or-flight response and Blood vessel · See more »

Body reactivity

Body reactivity is usually understood as the body's ability to react in a proper way to influence the environment.

New!!: Fight-or-flight response and Body reactivity · See more »

Catecholamine

A catecholamine (CA) is a monoamine, an organic compound that has a catechol (benzene with two hydroxyl side groups at carbons 1 and 2) and a side-chain amine.

New!!: Fight-or-flight response and Catecholamine · See more »

Cell (biology)

The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.

New!!: Fight-or-flight response and Cell (biology) · See more »

Chromatophore

Chromatophores are pigment-containing and light-reflecting cells, or groups of cells, found in a wide range of animals including amphibians, fish, reptiles, crustaceans and cephalopods.

New!!: Fight-or-flight response and Chromatophore · See more »

Coagulation

Coagulation (also known as clotting) is the process by which blood changes from a liquid to a gel, forming a blood clot.

New!!: Fight-or-flight response and Coagulation · See more »

Coping (psychology)

Coping is the conscious effort to reduce stress.

New!!: Fight-or-flight response and Coping (psychology) · See more »

Cortisol

Cortisol is a steroid hormone, in the glucocorticoid class of hormones.

New!!: Fight-or-flight response and Cortisol · See more »

Daniel Reisberg

Daniel Reisberg is an American academic who is the Patricia and Clifford Lunneborg Professor of Psychology at Reed College in Portland, Oregon.

New!!: Fight-or-flight response and Daniel Reisberg · See more »

Defense physiology

Defense physiology is a term used to refer to the symphony of body function (physiology) changes which occur in response to a stress or threat.

New!!: Fight-or-flight response and Defense physiology · See more »

Digestion

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma.

New!!: Fight-or-flight response and Digestion · See more »

Dopamine

Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is an organic chemical of the catecholamine and phenethylamine families that plays several important roles in the brain and body.

New!!: Fight-or-flight response and Dopamine · See more »

Ectotherm

An ectotherm (from the Greek ἐκτός (ektós) "outside" and θερμός (thermós) "hot"), is an organism in which internal physiological sources of heat are of relatively small or quite negligible importance in controlling body temperature.

New!!: Fight-or-flight response and Ectotherm · See more »

Emotional dysregulation

Emotional dysregulation (ED) is a term used in the mental health community to refer to an emotional response that is poorly modulated, and does not fall within the conventionally accepted range of emotive response.

New!!: Fight-or-flight response and Emotional dysregulation · See more »

Erection

An erection (clinically: penile erection or penile tumescence) is a physiological phenomenon in which the penis becomes firm, engorged, and enlarged.

New!!: Fight-or-flight response and Erection · See more »

Estrogen

Estrogen, or oestrogen, is the primary female sex hormone.

New!!: Fight-or-flight response and Estrogen · See more »

Evolutionary psychology

Evolutionary psychology is a theoretical approach in the social and natural sciences that examines psychological structure from a modern evolutionary perspective.

New!!: Fight-or-flight response and Evolutionary psychology · See more »

Fatty acid

In chemistry, particularly in biochemistry, a fatty acid is a carboxylic acid with a long aliphatic chain, which is either saturated or unsaturated.

New!!: Fight-or-flight response and Fatty acid · See more »

Flight zone

The flight zone of an animal is the area surrounding an animal that if encroached upon by a potential predator or threat, including humans, will cause alarm and escape behavior.

New!!: Fight-or-flight response and Flight zone · See more »

Flushing (physiology)

For a person to flush is to become markedly red in the face and often other areas of the skin, from various physiological conditions.

New!!: Fight-or-flight response and Flushing (physiology) · See more »

Freezing behavior

Freezing behavior or the freeze response is a reaction to specific stimuli, most commonly observed in prey animals.

New!!: Fight-or-flight response and Freezing behavior · See more »

Glucose

Glucose is a simple sugar with the molecular formula C6H12O6.

New!!: Fight-or-flight response and Glucose · See more »

Glycogen

Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in humans, animals, fungi, and bacteria.

New!!: Fight-or-flight response and Glycogen · See more »

Goose bumps

Goose bumps are the bumps on a person's skin at the base of body hairs which may involuntarily develop when a person is cold or experiences strong emotions such as fear, euphoria or sexual arousal.

New!!: Fight-or-flight response and Goose bumps · See more »

Hearing loss

Hearing loss, also known as hearing impairment, is a partial or total inability to hear.

New!!: Fight-or-flight response and Hearing loss · See more »

Heart arrhythmia

Heart arrhythmia (also known as arrhythmia, dysrhythmia, or irregular heartbeat) is a group of conditions in which the heartbeat is irregular, too fast, or too slow.

New!!: Fight-or-flight response and Heart arrhythmia · See more »

Heart rate

Heart rate is the speed of the heartbeat measured by the number of contractions of the heart per minute (bpm).

New!!: Fight-or-flight response and Heart rate · See more »

Hemodynamics

Hemodynamics or hæmodynamics is the dynamics of blood flow.

New!!: Fight-or-flight response and Hemodynamics · See more »

Henry Gleitman

Henry Gleitman (January 4, 1925 – September 2, 2015) was a Professor Emeritus of Psychology at the University of Pennsylvania.

New!!: Fight-or-flight response and Henry Gleitman · See more »

Homeostasis

Homeostasis is the tendency of organisms to auto-regulate and maintain their internal environment in a stable state.

New!!: Fight-or-flight response and Homeostasis · See more »

Hypothalamic–pituitary–adrenal axis

The hypothalamic–pituitary–adrenal axis (HPA axis or HTPA axis) is a complex set of direct influences and feedback interactions among three components: the hypothalamus, the pituitary gland (a pea-shaped structure located below the thalamus), and the adrenal (also called "suprarenal") glands (small, conical organs on top of the kidneys).

New!!: Fight-or-flight response and Hypothalamic–pituitary–adrenal axis · See more »

Hypothalamus

The hypothalamus(from Greek ὑπό, "under" and θάλαμος, thalamus) is a portion of the brain that contains a number of small nuclei with a variety of functions.

New!!: Fight-or-flight response and Hypothalamus · See more »

Immune system

The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease.

New!!: Fight-or-flight response and Immune system · See more »

Injury

Injury, also known as physical trauma, is damage to the body caused by external force.

New!!: Fight-or-flight response and Injury · See more »

Lacrimal gland

The lacrimal glands are paired, almond-shaped exocrine glands, one for each eye, that secrete the aqueous layer of the tear film.

New!!: Fight-or-flight response and Lacrimal gland · See more »

Lion

The lion (Panthera leo) is a species in the cat family (Felidae).

New!!: Fight-or-flight response and Lion · See more »

Medulla oblongata

The medulla oblongata (or medulla) is located in the brainstem, anterior and partially inferior to the cerebellum.

New!!: Fight-or-flight response and Medulla oblongata · See more »

Metabolism

Metabolism (from μεταβολή metabolē, "change") is the set of life-sustaining chemical transformations within the cells of organisms.

New!!: Fight-or-flight response and Metabolism · See more »

Muscle

Muscle is a soft tissue found in most animals.

New!!: Fight-or-flight response and Muscle · See more »

Muscle tone

In physiology, medicine, and anatomy, muscle tone (residual muscle tension or tonus) is the continuous and passive partial contraction of the muscles, or the muscle's resistance to passive stretch during resting state.

New!!: Fight-or-flight response and Muscle tone · See more »

Mydriasis

Mydriasis is the dilation of the pupil, usually having a non-physiological cause, or sometimes a physiological pupillary response.

New!!: Fight-or-flight response and Mydriasis · See more »

Norepinephrine

Norepinephrine (NE), also called noradrenaline (NA) or noradrenalin, is an organic chemical in the catecholamine family that functions in the brain and body as a hormone and neurotransmitter.

New!!: Fight-or-flight response and Norepinephrine · See more »

Organism

In biology, an organism (from Greek: ὀργανισμός, organismos) is any individual entity that exhibits the properties of life.

New!!: Fight-or-flight response and Organism · See more »

Pallor

Pallor is a pale color of the skin that can be caused by illness, emotional shock or stress, stimulant use, or anemia, and is the result of a reduced amount of oxyhaemoglobin and is visible in skin conjuctivae or mucous membrane.

New!!: Fight-or-flight response and Pallor · See more »

Panic attack

Panic attacks are sudden periods of intense fear that may include palpitations, sweating, shaking, shortness of breath, numbness, or a feeling that something bad is going to happen.

New!!: Fight-or-flight response and Panic attack · See more »

Parasympathetic nervous system

The parasympathetic nervous system (PSNS) is one of the two divisions of the autonomic nervous system (a division of the peripheral nervous system (PNS)), the other being the sympathetic nervous system.

New!!: Fight-or-flight response and Parasympathetic nervous system · See more »

Perceived control

Perceived control (PC) can be defined as the belief that one sees he or she has control over their inside state, behaviors and the place or people or things or feelings or activities surrounding a person.

New!!: Fight-or-flight response and Perceived control · See more »

Peripheral vision

Peripheral vision is a part of vision that occurs only on the side gaze.

New!!: Fight-or-flight response and Peripheral vision · See more »

Phobia

A phobia is a type of anxiety disorder, defined by a persistent and excessive fear of an object or situation.

New!!: Fight-or-flight response and Phobia · See more »

Pituitary gland

An explanation of the development of the pituitary gland (Hypophysis cerebri) & the congenital anomalies. In vertebrate anatomy, the pituitary gland, or hypophysis, is an endocrine gland about the size of a pea and weighing in humans.

New!!: Fight-or-flight response and Pituitary gland · See more »

Predatory imminence continuum

Animals have many different tactics for defending themselves, depending on the severity of the threat they are encountering.

New!!: Fight-or-flight response and Predatory imminence continuum · See more »

Psychological trauma

Psychological trauma is a type of damage to the mind that occurs as a result of a severely distressing event.

New!!: Fight-or-flight response and Psychological trauma · See more »

Pupillary response

Pupillary response is a physiological response that varies the size of the pupil, via the optic and oculomotor cranial nerve.

New!!: Fight-or-flight response and Pupillary response · See more »

Reflex

A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus.

New!!: Fight-or-flight response and Reflex · See more »

Respiratory rate

The respiratory rate is the rate at which breathing occurs.

New!!: Fight-or-flight response and Respiratory rate · See more »

Robert Sapolsky

Robert Morris Sapolsky (born April 6, 1957) is an American neuroendocrinologist and author.

New!!: Fight-or-flight response and Robert Sapolsky · See more »

Saliva

Saliva is a watery substance formed in the mouths of animals, secreted by the salivary glands.

New!!: Fight-or-flight response and Saliva · See more »

Serotonin

Serotonin or 5-hydroxytryptamine (5-HT) is a monoamine neurotransmitter.

New!!: Fight-or-flight response and Serotonin · See more »

Sexual arousal

Sexual arousal (also sexual excitement) is the arousal of sexual desire, during or in anticipation of sexual activity.

New!!: Fight-or-flight response and Sexual arousal · See more »

Small intestine

The small intestine or small bowel is the part of the gastrointestinal tract between the stomach and the large intestine, and is where most of the end absorption of food takes place.

New!!: Fight-or-flight response and Small intestine · See more »

Social anxiety

Social anxiety can be defined as nervousness in social situations.

New!!: Fight-or-flight response and Social anxiety · See more »

Social anxiety disorder

Social anxiety disorder (SAD), also known as social phobia, is an anxiety disorder characterized by a significant amount of fear in one or more social situations, causing considerable distress and impaired ability to function in at least some parts of daily life.

New!!: Fight-or-flight response and Social anxiety disorder · See more »

Sphincter

A sphincter is a circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning.

New!!: Fight-or-flight response and Sphincter · See more »

Spinal cord

The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column.

New!!: Fight-or-flight response and Spinal cord · See more »

Stomach

The stomach (from ancient Greek στόμαχος, stomachos, stoma means mouth) is a muscular, hollow organ in the gastrointestinal tract of humans and many other animals, including several invertebrates.

New!!: Fight-or-flight response and Stomach · See more »

Stress (biology)

Physiological or biological stress is an organism's response to a stressor such as an environmental condition.

New!!: Fight-or-flight response and Stress (biology) · See more »

Sympathetic nervous system

The sympathetic nervous system (SNS) is one of the two main divisions of the autonomic nervous system, the other being the parasympathetic nervous system.

New!!: Fight-or-flight response and Sympathetic nervous system · See more »

Tachypnea

Tachypnea or tachypnoea is abnormally rapid breathing.

New!!: Fight-or-flight response and Tachypnea · See more »

Tears

Tearing, lacrimation, or lachrymation is the secretion of tears, which often serves to clean and lubricate the eyes in response to an irritation of the eyes.

New!!: Fight-or-flight response and Tears · See more »

Tend and befriend

Tend-and-befriend is a behavior exhibited by some animals, including humans, in response to threat.

New!!: Fight-or-flight response and Tend and befriend · See more »

Testosterone

Testosterone is the primary male sex hormone and an anabolic steroid.

New!!: Fight-or-flight response and Testosterone · See more »

The Relaxation Response

The Relaxation Response is a book written in 1975 by Herbert Benson, a Harvard physician, and Miriam Z. Klipper.

New!!: Fight-or-flight response and The Relaxation Response · See more »

Tremor

A tremor is an involuntary, somewhat rhythmic, muscle contraction and relaxation involving oscillations or twitching movements of one or more body parts.

New!!: Fight-or-flight response and Tremor · See more »

Tunnel vision

Tunnel vision (also known as "Kalnienk vision") is the loss of peripheral vision with retention of central vision, resulting in a constricted circular tunnel-like field of vision.

New!!: Fight-or-flight response and Tunnel vision · See more »

Urinary bladder

The urinary bladder is a hollow muscular organ in humans and some other animals that collects and stores urine from the kidneys before disposal by urination.

New!!: Fight-or-flight response and Urinary bladder · See more »

Urination

Urination is the release of urine from the urinary bladder through the urethra to the outside of the body.

New!!: Fight-or-flight response and Urination · See more »

Vasoconstriction

Vasoconstriction is the narrowing of the blood vessels resulting from contraction of the muscular wall of the vessels, in particular the large arteries and small arterioles.

New!!: Fight-or-flight response and Vasoconstriction · See more »

Vasodilation

Vasodilation is the widening of blood vessels.

New!!: Fight-or-flight response and Vasodilation · See more »

Vertebrate

Vertebrates comprise all species of animals within the subphylum Vertebrata (chordates with backbones).

New!!: Fight-or-flight response and Vertebrate · See more »

W. W. Norton & Company

W.

New!!: Fight-or-flight response and W. W. Norton & Company · See more »

Walter Bradford Cannon

Walter Bradford Cannon (October 19, 1871 – October 1, 1945) was an American physiologist, professor and chairman of the Department of Physiology at Harvard Medical School.

New!!: Fight-or-flight response and Walter Bradford Cannon · See more »

Workplace bullying

Workplace bullying is a persistent pattern of mistreatment from others in the workplace that causes either physical or emotional harm.

New!!: Fight-or-flight response and Workplace bullying · See more »

Yerkes–Dodson law

The Yerkes–Dodson law is an empirical relationship between arousal and performance, originally developed by psychologists Robert M. Yerkes and John Dillingham Dodson in 1908.

New!!: Fight-or-flight response and Yerkes–Dodson law · See more »

Zebra

Zebras are several species of African equids (horse family) united by their distinctive black and white striped coats.

New!!: Fight-or-flight response and Zebra · See more »

Redirects here:

Chronic Bracing, Chronic bracing, Environmental stress theory, Fight or Flee, Fight or flight response, Fight or flight theory, Fight, flight, freeze or fawn response, Fight-or-flight, Fight-or-flight response (in animals), Fight-or-flight response (in humans), Flight or fight, Flight or fight response, Flight-or-fight, Flight-or-fight response, Hyperarousal, Shit scared, Stress response.

References

[1] https://en.wikipedia.org/wiki/Fight-or-flight_response

OutgoingIncoming
Hey! We are on Facebook now! »