which gland releases epinephrine and norepinephrine
Adrenal medulla. The inner part of the adrenal gland. The adrenal medulla produces the hormones epinephrine (adrenaline), which stimulates the heart, tightens blood vessels, and relaxes some smooth muscles; and norepinephrine, which has similar effects. Mentioned in: Adrenal Gland Scan, Pheochromocytoma, Vasodilators.