Epinephrine

It can act as neurotransmitter as well as a hormone produced by the adrenal gland to signal glycogen breakdown in the muscle cells .  Epinephrine acts quickly to improve breathing, stimulate the heart, raise a dropping blood pressure, reverse hives, and reduce swelling of the face, lips, and throat. Epinephrine is in a class of medications called alpha- and beta-adrenergic agonists (sympathomimetic agents). lt is also called adrenaline.

Epinephrine is produced specifically in the adrenal medulla, where the amino acid tyrosine is transformed through a series of reactions to norepinephrine. 

Epinephrine is also used to treat anaphylaxis (acute systemic allergic reaction), which can occur in response to exposure to certain drugs, insect venoms, and foods (e.g., nuts and shellfish). It is also occasionally used in the emergency treatment of asthma, where its relaxation of smooth muscle helps to open the airways in the lungs, and in the treatment of glaucoma, where it appears to both decrease the production of aqueous humour and increase its outflow from the eye, thereby lowering intraocular pressure. 

Epinephrine reduces pharyngeal edema (swelling) because it is a potent vasoconstrictor in small arterioles and precapillary sphincters in most body organ systems.

Q1.Which Hormone,produced during Anger, fear, danger; also called 'Fight or Flight' harmone-
a. Adrenaline
b. Estrogen
c. Insulin
d. Pheromones

Ans. a

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