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The body's response to stress:

1. Acute stress ­ sympathomedullary pathway
2. Chronic stress ­ pituitary-adrenal system

Acute stress ­ sympathomedullary pathway:
The influence of the SNS and adrenal medulla prepares the body for fight or
flight when faced with an acute stressor. The sympathomedullary pathway
is made up of…

Page 2

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minutes of the stressor appearing. The system is very effective at
regulating itself; the hypothalamus and pituitary glands have receptors that
sense if cortisol levels are too high or low in the body. If levels are too high
CRF and ACTH production is reduced bringing levels back to normal and…

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