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Template:Infobox - hormon Adrenaline (epinephrine, from Greek epi "upon", nephrós "kidney") is an endogenous catecholamine with combined α- and β-sympathomimetic activity. It is a hormone and neurotransmitter produced by the adrenal medulla, moreover it also occurs in the postganglionic sympathetic nerves and some parts of the central nervous system. Its biological role is to prepare the body for stressful situations - fight, escape. It increases the supply of oxygen and glucose to the brain and muscles and also suppresses some less urgent processes.

Chemical structure and metabolism[edit | edit source]

Adrenaline is chemically 4-[(1R)-1-hydroxy-2-(methylamino)ethyl]-benzyl alcohol. It is synthesized from tyrosine through L-DOPA, dopamine and norepinephrine.

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Category:Biochemistry Category:Dictionary of physiology Category:Physiology Category:Endocrinology Category:Significantly modified checked articles