Epinephrine And L-DOPA

The medulla and adrenal glands secrete and produce epinephrine and norepinephrine. Epinephrine comes from a hydroxylated Tyrosine known as tyrosine hydroxylase to form L-DOPA. Dopamine is formed when L-DOPA is decarboxylated. The last step of the production of norepinephrine is when a second yielding of hydroxylation is present then the Methylation of an amino group of norepinephrine. Both neurotransmitters play a major role in the fight or flight response.