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Biological Response to Stress

Sympathomedullary pathway (SMP)- Short term stress

Stressor is perceived by sense organs
Sends a nervous message to hypothalamus
Hypothalamus sends nervous message to sympathetic nervous system
In turns sends nervous message to the adrenal Medullar
Adrenal Medullar secretes adrenaline and noradrenaline into the bloodstream
This then…

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Similarities Differences
Both focus around hypothalamus SMP short term, PAS long term
Both go to the adrenal gland, however Release different hormones ­ SMP is
different areas. adrenaline + noradrenaline, PAS is
PAS bypasses the sympathomedullary
SMP can't be maintained, PAS can




really clear, the diagram helps a lot. thanks 

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