Fight or Flight

Cards (2)

  • 1)A stressful event occurs.
    ->The hypothalamus triggers activity in the sympathetic branch of the autonomous nervous system.
    2)The stress hormone adrenalin is released from the adrenal medulla into the bloodstream.
    ->Causes physiological changes (Pupil dilation, heart rate increases.)
  • 3)Once the threat has passed, the parasympathetic branch of the A.N.S is activated and returns the body to it's original state. (The adrenal medulla realises noradrenalin.