What Is Adrenaline And What Does It Do?


9 Answers

Ian Marshall Profile
Ian Marshall answered
A hormone that is created by the adrenal gland, adrenalin is found in many animals, including human beings. When the body produces this hormone, the heart-rate is stimulated and other effects on the body take place. Although there are many situations in which adrenalin is produced in large quantities, situations that cause high emotional or physical stress are the most likely to encourage its production.
About three inches long in the human body, the adrenal glands are located right above the kidneys. When the adrenal glands are active and functioning properly, around 20% of the substances released by the adrenal glands is noradrenalin while 80% is adrenalin.
In extremely stressful situations, a "fight or flight” response is sometimes used. In this case, the body releases adrenalin which stimulates the heart rate and dilates the blood vessels. It also expands air passages. All of these things work together in order to allow the body is circulate more oxygen into the lungs as well as more blood throughout the body. Because more blood can go into the muscles at this time, some people are able to find themselves with more strength than they usually possess. This relates back to the evolutionary process when adrenalin used as a physical response that humans and animals were able to use to defend and protect themselves.

In small doses, adrenalin is sometimes administered during health crisis in order to re-stimulate the heart rate or during allergic reactions. It’s important that this only be administered in the right quantities, however, or else adverse reactions can occur.
Katie Harry Profile
Katie Harry answered
Adrenaline (also referred to as epinephrine) is a hormone secreted by the adrenal gland which is found as resting on top of the kidneys. Adrenaline was the first hormone to be identified ever. It was isolated and identified by Napoleon Cybulski in 1895 and was first synthetically made by Friedrich Stolz in 1904.
The hormone adrenaline is what the biologists call a 'fight and flight' hormone. It is released in high stress conditions or in excitement or fear. This dates back to our evolutionary years where this hormone allowed us to escape or run after or tackle a prey. High noise, temperature etc may also trigger its release since these are also high stress situations.
It helps the fight and flight by boosting the heart rate, increasing the breathing rate which allows more oxygen uptake for more respiration so that a lot of energy is available when needed. The pupils are dilated so as to improve vision. It also directs most of the blood supply to the skeletal muscles that help us run or fight and restricts blood flow to the gut and skin by constricting blood vessels to these areas (after all, digestion can wait). It also speeds up the conversion of glycogen to glucose in the liver because glucose is the substrate for respiration (producing energy).
It is also used in medicine to help cardiac arrest and as a nasal spray to open air passages.
thanked the writer.
Anonymous commented
Adrenaline also known as epinephrine can give you a burst of superhuman strength and speed, this helps you to react faster. Adrenaline can be triggered by excitement, fear, stress and even high temperature and lots more
Anonymous commented
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Kath Senior Profile
Kath Senior answered
Adrenaline is a hormone produced in the body. Also known as epinephrine, it is produced by the medulla of the adrenal glands, which lie just above the kidneys.

Adrenaline is quite similar in structure to another hormone called noradrenaline and both are produced in times of fear and stress. They produced an effect on the body that is commonly known as the 'fight or flight' response. In the liver, the hormones act to increase blood sugar in preparation for flight or fight by stimulating glucose production.

The hormone also acts on fatty tissues to raise blood fatty acid levels and heart rate, blood flow to the muscles and breathing rate are all increased. At the same time, blood flow to the skin is reduced (making someone look pale) and blood flow to the digestive system is also cut drastically (which can make you feel or actually be sick).

All well known signs of fear.
Anonymous Profile
Anonymous answered
Adrenaline is a hormone that runs through the blood steam and that is produced by endocrine glands in the body, blood flow to the muscles and heart rate increases while blood flow to the skin and digestive system are reduced hormone give the impression of a pale  completion or feeling ill.
Anonymous Profile
Anonymous answered
Adrenaline makes your body react stronger and the chemical in adrenaline go through your veins
Anonymous Profile
Anonymous answered
It makes you awesome

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