What are the Functions of Endocrine System
| Glands | Secretion | Functions |
| 1. Pitutary | ||
| (A) Adeno hypophysis | (i) GH or STH | Controls growth of somatic cells influences protein, carbohydrate and metabolisms |
| (ii) TSH | Regulates the growth of thyroid gland and secretion of thyroxine | |
| (iii) ACTH | Stimulates adrenal contex to grow and secrete its hormones | |
| (iv) FSH | Stimulates growth of ovarian follicles in ovary of female and controls spermatogenesis in males | |
| (v) ICSH or LH | Stimulates ovary to produce estrogen in female and testis to produce androgens in male | |
| (vi) Prolactine | Controls development of mammary glands and stimulates corpus luteium to secrete progestrone | |
| (vii) MSH | Stimilate melanocytes | |
| (B) Neuro hypophysis | (i) Oxytocin | Controls uterine contraction during parturition, stimulates lactation to increase milk secretion |
| (ii) Vasopressin (ADH) | Controls tubular reabsorption of water in kidney, also increases blood pressure | |
| 2. Thyroid | ||
| (i) Thyroxine | Controls metabolism | |
| (ii) Thyrocalcitonin | Deposit calcium over bones. | |
| 3. Parathyroid | PTH | Maintain blood calcium. |
| 4. Adrenal | ||
| (A) Cortex | Mineralocorticoid (Aldosterone) | Salt retention |
| (B) Medulla | Adrenaline | Emergency hormone |
| 5. Gonads | ||
| (A) Testis (Cells of leydig) | Androgens (Testosteron) | Controls spermatogenesis and development of secondary sexual charaters of males |
| (B) Ovaries | ||
| (a) Graafian follicle | (i) Estrogen | Development of female sexual organs. |
| (b) Corpus luteum | (i) Progesterone | Maintain pregnancy |
| 6. Thymus | Thymosin | Strenthens immune system |
| 7. Pineal | Melatonin | Control skin colour. |
