2.89 Hormones

Adrenaline - It is produced by the adrenal glands which a re located above each kidney.
Adrenaline is released during times of excitement
Adrenaline helps the body prepare for action in the following ways :

• Glycogen is converted to glucose where it reaches the muscles as a source of energy for the rapid contractions for sudden action
• Heart rate increases so the more glucose and O2 are delivered to the muscle
• Bronchioles widen so more air is reaches the lungs
• Blood vessels are widen so more glucose and 02 can delivered to organs

ADH - It is produced by the pituitary glands . Their target is to controls the level of the water in your body, it controls the amount of water re-absorption in the collecting duct. 


Insulin  -Is produced in the pancreas. It lowers blood sugar by changing it to glycogen. It control blood sugar level.


Glucagen - it is also produced in the pancreas where it increase the blood sugar level.

Testosterone - It is produced in the testes in males only. This develops male features during puberty. Brings about the changes to our bodies. 

Progesterone and Oestrogen - it is produce in the ovaries ( female only). There control the menstrual cycle and develop female features during puberty.