Biopsychology: Fight Or Flight

Question 1

What happens to cause a fight or flight response

Answer 1

1) we receive a stressor that causes fear/ stress
2) Hypothalamus goes into overdrive and releases hormones
3) that trigger the sympathetic branch of the autonomic peripheral nervous system
3) The adrenal medulla releases Adrenalin and Noradrenaline which triggers a change of physiological changes to prepare us

Question 2

Role of Adrenalin

Answer 2

1) Increased old flow to the brain, which helps to to think and strategise
2) Vasoconstriction: blood vessels constrict which cause our blood pressure to increase
3) Blood is directed to our working muscles, this increases the supply of oxygen to our muscle cells so that w so we can run away
4) Directed away from the digestive system and defence mechanism (fighting disease)
5) Increased respiration

Question 3

Role of noradrenaline

Answer 3

1) It is released in the brain and has psychological effects
eg. Focused attention