Paired endocrine glands lying close to the kidneys, they secrete various hormones including the fight / flight hormone Adrenaline (Epinephrine), and Norepinephrine. Together these two are called the catecholamines and are involved in regulating the cardiovascular system and mobilizing fat and carbohydrate stores for energy. Also, Cortisol which helps regulate blood glucose originates in the adrenals as does Aldosterone involved in kidney function and sex hormones (androgen & oestrogen).
