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Homeostasis #6
The Endocrine System: Structures and Functions
| Hormone | Secreted by | Target | Results |
|---|---|---|---|
| Antidiuretic Hormone (ADH) | Posterior Pituitary | Kidney | Promotes water retention by kidney tubules |
| Oxytocin | Posterior Pituitary | Uterus, mammory glands | stimulates uterine contractions, stimulate ejection of milk into mammory ducts |
| Growth Hormone | Anterior Pituitary | General | promotes growth |
| Prolactin | Anterior Pituitary | Mammary Glands | promotes milk secretion |
| Thyroid-stimulating hormone | Anterior Pituitary | Thyroid gland | stimulates development and secretion of thyroid gland |
| Adrenocorticotropic hormone | Anterior Pituitary | adrenal cortex | promotes development and secretion in the adrenal cortex |
| Follicle-stimulating hormone | Anterior Pituitary | gonads | female: promotes development of voarian follicle simulates estrogen secretion Male: promotes development of testes stimulates sperm production |
| Luteinizing | Anterior Pituitary | gonads | female: triggers ovulation, development of corpus luteum Male: stimulates production of testosterone |
| Melatonin | Pineal Gland | (blank) | induce sleep |
| Triiodothyronine (T3) | Thyroid gland | general | increase metabolism |
| Tetraiodothyronine (T4) | Thyroid gland | general | increase metabolism |
| Calcitonin | thyroid gland | bone tissue | increase calcium storage in bones, lowering Ca++ levels |
| Parathyroid hormone | Parathyroid glands | bone tissue and kidney | increases calcium removal from storage in bone and produces active form of vitamin D in the kidneys, increasing calcium absorption by intestines and increasing blood Ca++ levels |
| aldosterone | adrenal cortex | kidney | stimulates kidney tubules to conserve sodium triggering release of ADH and water conservation in kidneys |
| cortisol | adrenal cortex | general | influences metabolism of food, in large ammounts antiinflammatory effect |
| adrenal androgens | adrenal cortex | sex organs | (blank) |
| adrenal estrogens | adrenal cortex | sex organs | (blank) |
| epinephrine | adrenal medulla | sympathetic effectors | enhances and prolongs the effects of the sympathetic division of the autonomic nervous system |
| norepinephrine | adrenal medulla | sympathetic effectors | enhances and prolongs the effects of the sympathetic division of the autonomic nervous system |
| glucagon | pancreatic islets (alpha or A cells) | general | promotes movement of glucose from storage into the blood |
| Insulin | Pancreatic islets (beta or B cells) | general | promotes movement of glucose out of blood and into cells |
| Somatostatin | Pancreatic islets (delta or D cells) | pancreatic cells and other effectors | general effects but main is to regulate secretion of other pancreatic hormones |
| Pancreatic polypeptide | Pancreatic islets (pancreatic polypeptide or F cells) | Intestinal cells and other effectors | seems to influence absorption in the digestive tract |
| Secretin | Small Intestine Lining | (blank) | Stimulates secretion of pancreatic juice by ancreas. |
| Gastrin | Stomach Lining | (blank) | Stimulates secretion of gastric juice by stomach. |
| Progesterone | Ovaries | (blank) | Maintains uterine lining during pregnancy. |
| Testosterone | Testes | (blank) | Controls male secondary sex characteristics. |
| Estrogen | Ovaries | (blank) | Controls female secondary sex characteristics and stimulates thickening of uterine wall in preparation for pregnancy. |
| Adrenaline | Adrenal Medulla | (blank) | Stimulates breakdown of glycogen to glucose and the release of glucose into blood, thereby increasing heartbeat rate and respiration rate. |