An example of a three-part endocrine axis involves the hypothalamus, pituitary, and adrenal cortex.

Question

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The hypothalamus releases corticotropin-releasing hormone (CRH), which stimulates the pituitary gland to release adrenocorticotropic hormone (ACTH), which in turn stimulates the adrenal cortex to release cortisol. This is an example of the hypothalamic-pituitary-adrenal (HPA) axis, which is a three-part endocrine axis.

An Example of a Three-Part Endocrine Axis Involves the Hypothalamus