Sympathomedullary Pathway (SAM) and Pituitary-Adrenal System (HPA)

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  • Created by: ___james
  • Created on: 27-04-14 14:28

Sympathomedullary Pathway (SAM): 

  • When exposed to a stressor, the hypothalamus is triggered. This excites the sympathetic nervous system which stimulates the adrenal medulla. The adrenal medulla releases adrenaline and noradrenaline into the bloodstream producing a "fight or flight" response.

 Stressor -> Hypothalamus -> Adrenal


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