HPA Axis - SAE Practise

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6 Terms

1
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what is the HPA axis activated by?

primarily stress

2
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what is step one in the activation of the HPA axis?

stressful stimulus is perceived

3
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what is step two in the activation of the HPA axis?

Hypothalamus releases CRH

4
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what is step three in the activation of the HPA axis?

CRH stimulates the pituitary gland to release ACTH

5
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what is step 4 in the activation of the HPA axis?

ACTH travels in the bloodstream to the adrenal glands

6
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what is step 5 in the activation of the HPA axis?

adrenal cortex releases cortisol