| A | B |
| Growth hormone releasing hormone (GH-RH) | Increases the release of GH from the anterior pituitary (released by the hypothalamus) |
| Corticotropin releasing hormone (CRH) | Increases the release of ACTH from the anterior pituitary (released by the hypothalamus) |
| Gonadotropin releasing hormone (GnRH) | Increases the release of FSH and LH from the anterior pituitary (released by the hypothalamus) |
| Thyroid stimulating hormone releasing hormone (TSH-RH) | Increases the release of TSH from the anterior pituitary (released by the hypothalamus) |
| Prolactin inhibiting hormone (PIH) | Decreases the release of PRL from the anterior pituitary (released by the hypothalamus) |
| Growth hormone (GH) | Increases growth in most tissues (released by the anterior pituitary) |
| Thyroid stimulating hormone (TSH) | Increases the release of thyroxine from the thyroid gland (released by the anterior pituitary) |
| Adrenocorticotropic hormone (ACTH) | Increases the release of cortisol from the adrenal cortex(released by the anterior pituitary) |
| Follicle stimulating hormone (FSH) | Stimulates ovaries or testes (released by the anterior pituitary) |
| Prolactin (PRL) | Stimulates milk production in the breasts (released by the anterior pituitary) |
| Melanocyte stimulating hormone (MSH) | Increases the synthesis of melanin in melanocytes (released by the anterior pituitary) |
| Antidiuretic hormone (ADH) | Increases the retention of water by the kidneys (released by the posterior pituitary) |
| Oxytocin (OT) | Increases the contractions of the uterus during birth and promotes the release of breast milk (released by the posterior pituitary) |
| Thyroxine (TH) | Increases the metabolic rate of most cells (released by the thyroid) |
| Calcitonin | Inhibits osteoclast activity, lowering blood calcium levels (released by the thyroid) |
| Parathyroid hormone (PTH) | Increases blood calcium levels by increasing osteoclast activity (released by the parathyroids) |
| Epinephrine (E) | Enhances sympathetic response (released by the adrenal medulla) |
| Norepinephrine (NE) | Enhances sympathetic response (released by the adrenal medulla) |
| Cortisol | Increases protein and fat breakdown in most tissues (released by the adrenal cortex) |
| Aldosterone | Increases the retention of sodium by the kidneys (released by the adrenal cortex) |
| Insulin | Lowers blood glucose by stimulating cells to absorb glucose (released by the pancreas) |
| Glucagon | Raises blood glucose by causing the liver to release glucose (released by the pancreas) |
| Estrogen | Sex hormone in females (released by the ovaries) |
| Progesterone | Sex hormone in females (released by the ovaries) |
| Testosterone | Sex hormone in males (released by the testes) |
| Melatonin | Affects release of GnRH by hypothalamus (released by the pineal body) |
| Thymosin | Develops immune functions (released by the thymus) |