Composed mainly of hormone-producing chromaffin cells, the adrenal medulla is the principal site of the conversion of the amino acid tyrosine into the catecholamines adrenaline (epinephrine),...
Several such as cortisol, cortisone, alderstone, epinephrine, norepinephrine, adrenaline, and finally, androgens which consist of androstenedione and DHEA which together are converted to testosterone.