Fight or flight

• 1. The person enters a stressful situation
• 2. The hypothalamus in the brain recieves the stress signals
• 3. the hypothalamus activates the sympathetic nervous system
• 4. The pituitary gland releases the hormone adrenocorticotropic (ACTH)
• 5. The hormone cases the adrenal gland to release adrenaline into the bloodstream
• 6. Adrenaline triggers the psychological changes needed for the flight or fight response
• 7. Once the threat has passed the parasympathetic nervous system brings the body back to the resting state