Adrenaline

Key Stage 4

Meaning

Adrenalin is a hormone produced by the adrenal glands which affects the fight or flight response of vertebrates.

About Adrenalin

Adrenalin's effect on target organs:

• The heart is caused to beat faster.
• The bladder becomes irritating causing an organism to feel the need to urinate.
• The brain and nervous system increase the speed of electrical impulses giving shorter reaction times.