Hypothalamic Pituitary Adrenal System

HideShow resource information
  • Created by: 217517
  • Created on: 14-03-15 19:40


The situation is appraised and perceived as stressful

1 of 7


Hypothalamus is alerted. This recognises the stress as chronic

2 of 7


Hypothalamus activates the HPA axis, which is also known as the Pituitary Adrenal System

3 of 7


This stimulates the Pituitary Gland in the brain

4 of 7


The pituitary gland causes the release of several hormones including ACTH, which stands for Adrenocorticotropic hormone

5 of 7


The release of ACTH stimulates the adrenal cortex to release corticosteroids, the key one being cortisol

6 of 7


The release of these hormones has a number of physiological effects on the body. Some of these are positive, such as a constant supply of energy to the muscles. Some of these are negative, such as suppression of the body's immune system as a way of conserving energy.

7 of 7


No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all Stress resources »