Hormones

Question 1

Adrenaline

Answer 1

• released by adrenal glands
• increases delivery of oxygen and glucose to the brain
• increases heart rate and breathing rate
• initiates conversion of glycogen to glucose in the liver for respiration

Question 2

Insulin

Answer 2

• secreted from a gland in the Islets of Langerham
• decreases blood glucose levels
• lowers blood pressure and prevents vessel damage
• stores glucose in cells to provide energy
• begins conversion of glucose to glycogen

Question 3

Progesterone

Answer 3

• source is ovaries
• produced in the ovaries after ovulation
• maintains the lining of the uterus
• when progesterone levels fall, the lining breaks
• inhibits release of FSH and LH

Question 4

Oestrogen

Answer 4

• source is ovaries
• FSH stimulates production of oestrogen
• produced in the ovaries
• stimulates production of LH
• causes the lining of the uterus to thicken and grow

Question 5

Testosterone

Answer 5

• source is testes
• main sex hormone in males
• it is the development of secondary sexual characteristics in males

Question 6

ADH

Answer 6

• anti-diuretic hormone
• produced in the pituitary glands
• acts on the collecting duct
• released when body is dehydrated
• causes water to be reabsorbed into blood
• urine becomes more concentrated

Question 7

FSH

Answer 7

• produced in the pituitary gland
• follicle stimulating hormone
• released in the pituitary glands
• stimulates the production of oestrogen
• causes an egg to develop

Question 8

LH

Answer 8

• produced in the pituitary gland
• luteinizing hormone
• stimulates the release of an an egg at day 14 (ovulation)
• stimulates the production of progesterone
• inhibits the production of oestrogen