endocrine glands and hormones

acth adipose adrenal adrenaline anatomical anatomy atrial biology body brain calcitonin care cholecalciferol cortisol diagram dopamine endocrine erythropoietin estrogen function gastrointestinal ghrelin gland glucagon gonads health heart hormone human hypothalamus insulin intestine kidney kidneys leptin liver medical medicine melatonin natriuretic organ ovary pancreas parathyroid peptide pineal pituitary pth resistin science secretin secretion skin stomach system testicle testosterone thrombopoietin thymulin thymus thyroid tissue tract trh tsh vector