What is Epinephrine
Epinephrine is also known as adrenalin which is a hormone and it is secreted by adrenal gland. The adrenal glands are triangular shaped glands that are positioned on the top of each kidney. Their main function is that they release hormones directly into the blood streams, while other glands releases hormones in duct and then carry them to blood stream.
Epinephrine regulates the signals between the neurons and other cells of our body and in this way they help us to retort to emergency situations. It is also used as a drug to treat cardiac arrest, asthma and allergic reactions.
The flight-or-fight response of the body is due to secretion of epinephrine and it was discovered in 1900 by Jokichi Takamine of Japan and at the same time it was discovered by his assistant Keizo Venaka. This hormone is secreted at the time of excitement, stress, during threats also such as when threat arises of physical harm; this hormone prepares the body to continue to exist in that situation. This is done by increasing the blood flow to muscles. The people who have allergy from peanuts they keep syringe with them. The syringe is injected into thigh and not into vein because injection into vein can trim down the blood flow in that scrupulous area. External factors such as noise pollution or bright lights can also increase the level of epinephrine in our body.
The main actions taken place in our body after the secretion of this hormone are:-
The supply of oxygen and glucose is amplified to our brain. Strike volume and heart beat increases. Dilation of pupil and constriction of arterioles in skin after its release. Sugar level in the blood is increased.
The secretion of epinephrine is controlled by the central nervous system. The hormone is significant for the proper growth and functioning of our body. It immediately recognizes the stress felt by our body and in turn it give signals to our nervous system to respond quickly. This quickness helps in generating energy in the form of glucose.