(a) Hypothalamus – TRH, CRH, GnRH, GHRH, Somatostatin, Dopamine
(b) Pituitary – GH, TSH, ACTH, LH, FSH, Prolactin, MSH
(c) Thyroid – T3, T4, Calcitonin
(d) Parathyroid – PTH
(e) Adrenal – Cortex: Cortisol, Aldosterone, Androgens; Medulla: Adrenaline, Noradrenaline
‍(f) Pancreas – Insulin, Glucagon, Somatostatin
(g) Testis – Testosterone
(h) Ovary – Estrogen, Progesterone
(i) Thymus – Thymosins
(j) Atrium – ANP
(k) Kidney – Erythropoietin, Renin
(l) G-I Tract – Gastrin, Secretin, CCK, GIP