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11. Hormones
Hormones of the Endocrine System
| Term | Definition |
|---|---|
| Growth hormone | Controls growth and development |
| Melanocyte-stimulating hormone (MSH) | qStimulates melanocytes to increase skin pigmentation |
| Prolactin (PRL) | Stimulates milk secretion by the mammary glands |
| Adrenocorticotropic hormone (ACTH) | Stimulates the cortex of the adrenal glands |
| Thyroid-stimulating hormone (TSH) | Stimulates the thyroid gland |
| Follicle-stimulating hormone (FSH) | Stimulates the development of the ova in the ovaries and sperm in the testes |
| Luteinizing hormone (LH) | Stimulates the secretion of sex hormones by the gonads. |
| Oxytocin (OT) | Stimulates contractions of the uterus and the release of milk by the mammary glands |
| Antidiruetic hormone (ADH) | Stimulates water reabsorption by the kidney |
| Thyroxine and triiodothyronine (T3) | Controls catabolic metabolism and protein synthesis in most body cells |
| Calcitonin (CT) | Reduces calcium and phosphate levels in the blood |
| Parathyroid hormone | Increases calcium levels in the blood and reduces phosphate levels |
| Epinephrine and norepinephrine | Prolong the conditions responsible for the "fight or flight" response. |
| Mineralcorticoids (aldosterone) | Maintain body fluid balance by stimulating the retention of sodium and excreting potassium; help regulate blood pressure |
| Glucocorticoids | Stimulate glycogen formation and storage, increase body resistance to stress and reduce inflammation |
| Sex hormones (androgens and estrogens) | Stimulate sex characteristics and sex cell development |
| Glucagon | Stimulates the conversion of glycogen to glucose |
| Insulin | Stimulates the conversion of glucose to glycogen and glucose uptake in the body |
| Estrogens | Stimulate the development of female sex characteristics, ovarian cycle and menstrual cycle |
| Testosterone | Stimulates the development of male sex characteristics and sperm production |
| Melatonin | May inhibit gonad activities and regulate body rhythms |
| Thymosin | Stimuate the maturation of T-lymphocytes |
| Hormones secreted by: Anterior Lobe of the Pituitary | GH, MSH, PRL, ACTH, TSH, FSH, LH |
| Hormones secreted by: Posterior Lobe of the Pituitary | OT, ADH |
| Hormones secreted by: Thyroid Gland | Thyroxine and triiodothryonine |
| Hormones secreted by: Parathyroid Gland | PTH |
| Hormones secreted by: Adrenal Glands, Medulla | epinephrine and norepinephrine |
| Hormones secreted by: Adrenal Glands, Cortex | mineralcorticoids (aldosterone) |
| Hormones secreted by: Pancreas (Islets of Langerhans) | glucagon, insulin |
| Hormones secreted by: Gonads | estrogens, testosterone |