Stress (Paper 3)

Question 1

Sympathomedullary pathway (short term)

Answer 1

• Hympothalamus activates the sympathetic branch of the ANS
• Adrenaline and noradrenaline are released by the adrenal medulla
• This prepares body for fight or flight

Question 2

Hypothalamic Pituitary Adrenal system (Long term)

Answer 2

• Hypothalamus releases CRH
• Causes pituitary gland to secrete ACTH
• ACTH stimulates adrenal cortex to release stress related hormones

Question 3

3x functions of cortisol

Answer 3

• Reduces immune system functioning
• Maintains a steady supply of glucose in the bloodstream
• Reduces sensitivity to pain