2.89 understand the sources, roles and effects of the following hormones: ADH, adrenaline, insulin, testosterone, progesterone and oestrogen.

Notes


Hormones are produced in the endocrine glands (i.e. pituitary gland) and released directly into the circulatory system. They travel to the target tissue, this causes effects.

ADH - Pituitary Gland -> Collecting Duct
Controls how much water is re-absorped in the collecting duct; therefore controls water content of blood


Adrenaline - Adrenal glands ->  Heart
Prepares body for stressful situations - 'fight' or 'flight'


Insulin - Pancreas -> Liver
Lowers glucose levels in the blood
-> Glucagon - Pancreas -> Liver
-> Raises blood sugar levels


Testosterone - Testes -> Testes (sperm)
Controls secondary male characteristics
Sperm production


Progesterone/Oestrogen - Ovaries -> Uterus
Controls secondary female characteristics
Menstrual cycle regulation
Build up lining of the uterus