Endocrine Gland

Question 1

Pituitary gland

Answer 1

Follicle stimulating hormone- Stimulates the development of ovarian follicles and seminiferous
Melanocyte- simulating hormone- Stimulate the dispersion of pigment (melanin)
Thyroid stimulating hormone- stimulates thyroid gland
Anti- diuretic hormone- Stimulate the reabsorption of water in kidney
Luteinising hormone- stimulates ovulation and conversion of empty follicle into corpus luteum

Question 2

Parathyroid gland

Answer 2

Parathormone- Acts in opposition to calcitonin- brings the removal of calcium from bone
- Increases reabsorption of calcium- raising calcium levels

Question 3

Thyroid

Answer 3

• Throxine and tri-iodothyronine- Increases metabolic rate by stimulating cellular respiration- important role in growth, tissue development and differetiation
• Calcitonin- Inhibits excessive rise in blood calcium by suppressing removal of calcium from bone

Question 4

Pancreas

Answer 4

• Glucagon- Increases blood sugar level by converting glycogen to glucose
• Insulin- Decreases blood sugar level by stimulating the formation of glycogen

Question 5

Adrenal cortex

Answer 5

• Glucocorticoids (cortisone)- regulates carbohydrate metabolism
• Mineralosteroids (aldosterone)- Regulates salt and water metabolism

Question 6

Adrenal medulla

Answer 6

• Adrenalin and noradrenalin- Prepare animal for emergency conditions (fight, flight, shock) by increasing heart rate and blood supply to skeletal muscles, lungs and liver and raising blood sugar level

Question 7

Ovaries

Answer 7

• Oestrogens- Initiate and maintain female secondary sexual characteristics, intiate thickening of uterus lining, stimulates FSH (follicle-stimulating) and LH (luteinising hormone)
• Progesterone- Maintains thickening of uterus lining inhibits FSH and LH

Question 8

Testes

Answer 8

Testosterone- Initiates and maintains male secondary sexual characteristics