What causes adrenaline to be released in a persons body?

Answer 1

Epinephrine or adrenaline sometimes spelled "epinephrin" or "adrenalin" respectively, is a hormone and a neurotransmitter. Epinephrine is a catecholamine, a sympathomimetic monoamine derived from the amino acids phenylalanine and tyrosine. The Latin roots ad-+renes and the Greek roots epi-+nephros both literally mean "on/to the kidney" (referring to the adrenal gland, which secretes epinephrine). Epinephrine is sometimes shortened to epi in medical jargon. Epinephrine is now also used in EpiPens. EpiPens are long narrow auto-injectors that administer epinephrine.

Epinephrine plays a central role in the short-term stress reaction—the physiological response to threatening, exciting or environmental stressor conditions such as high noise levels or bright light (see Fight-or-flight response), It also reacts to stress induced anger. It is secreted by the adrenal medulla. When released into the bloodstream, epinephrine binds to multiple receptors and has numerous effects throughout the body. It increases heart rate and stroke volume, dilates the pupils, and constricts arterioles in the skin and gut while dilating arterioles in leg muscles. It elevates the blood sugar level by increasing hydrolysis of glycogen to glucose in the liver, and at the same time begins the breakdown of lipids in adipocytes. Epinephrine has a suppressive effect on the immune system.

Epinephrine is used as a drug to promote peripheral vascular resistance via alpha-stimulated vasoconstriction in cardiac arrest and other cardiac dysrhythmias resulting in diminished or absent cardiac output, such that blood is shunted to the body's core. This beneficial action comes with a significant negative consequence—increased cardiac irritability—which may lead to additional complications immediately following an otherwise successful resuscitation. Alternatives to this treatment include vasopressin, a powerful antidiuretic which also increases peripheral vascular resistance leading to blood shunting via vasoconstriction, but without the attendant increase to myocardial irritability.

Because of its suppressive effect on the immune system, epinephrine is used to treat anaphylaxis and sepsis. Allergy patients undergoing immunotherapy may receive an epinephrine rinse before the allergen extract is administered, thus reducing the immune response to the administered allergen. It is also used as a bronchodilator for asthma if specific beta2-adrenergic receptor agonists are unavailable or ineffective. Adverse reactions to epinephrine include palpitations, tachycardia, anxiety, headache, tremor, hypertension, and acute pulmonary edema.

A pheochromocytoma is a tumor of the adrenal gland (or, rarely, the ganglia of the sympathetic nervous system), which secretes excessive amounts of catecholamines, usually epinephrine.

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Answer 2

Did your heart rate ever go up like crazy when you watched a horror movie? That is an example of an adrenaline-high. Did you ever witness a car accident,where it seems that your heart is in your throat?Again an adrenaline-high. At those moments you release a huge amount of sugar into your blood to prepare you for what comes next. And adrenaline too:to be prepared to counteract the effect something might have on you,like fright,pain,anxiety. Sky.

Answer 3

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What causes adrenaline to be released in a persons body?

Answer 4

There are many things that can cause the release of adrenaline (norepinephrine and epinephrine). The basic response has to do with your bodies autonomic nervous system (the part of you nervous system that you can not directly control). When you body presented with a stressful situation your body will turn on its Fight or Flight response, which is your sympathetic portion of the autonomic nervous system. Doing this the brain and central nervous system will send signals to you adrenal gland, which will cause it to release adrenaline (norepinephrine and epinephrine). The adrenaline released by the adrenal glands into the systemic blood supply, which will deliver it to all parts of you body and produce a fight or flight response. Secondly, the nerves of the sympathetic nervous system are responsible for release adrenaline From the nerve endings to what every organ/tissue it is controlling. The release of adrenaline from the nerve endings is the way the nerves can pass the message on to the organ or tissue to preform a certain function. The overall body response to adrenaline release is to prepare the body for fight or flight. The body will cause the heart rate will increase, your blood pressure will increase, blood flow to your muscle will increase, and you will begin to breath faster. All of these responses by body is to allow it to deal with the stressful situation. You can think of it as your body is getting ready to fight the stressful situation or run from it. Either way you want these response in order to provide the muscle and vital tissues with the fuel and energy they will need to overcome the stress. The increase Heart rate, blood pressure, and breathing rate is what gives you the filling you think of as a rush of adrenaline.

Answer 5

Dear, Adrenaline is one of the family of Chatycholamines, physiological hormones that's secreted in our bodies to regulate many functions, generally adrenaline is responsible for the sympathetic nervous system symptoms, that may include vasoconstriction, increased heart rate and activity, increased sweating and relaxed gastrointestinal activity, flushing and even bronchodilitation, as a drug it's mainlt used in anaphylactic shock and also used with local ansthetics for it's vasoconstriction effect.

Answer 6

Stimulus of the brain to the thymus

Answer 7

an organ in the endocrine system. I think its the pituitary gland. but if its not, its one of the organs in the endocrine system.

Answer 8

um endorphines?

Answer 9

fear and the adrenal gland.

Answer 10

stress such as fear, and exercise