And it's controlled by the GHRH hormone released by the hypothalamus. Now, let's move on to the second type of hormone that is released by the interior pituitary gland known as our adrenal corticotropic hormone or ACTH. Now, the hormone that is released by the hypothalamus that stimulates the release of ACTH from the anterior pituitary gland is known as the corticotropin releasing factor or CTF. Now, ACTH is released from the anterior pituitary gland at times of stress and it basically carries that hormone via the bloodstream into another endocrine glands in the body known as our adrenal cortex. And ACTH causes our adrenal cortex to basically release a group of hormones known as glucocorticoids via a secondary messenger system. And we'll discuss these in more detail when we'll focus on the adrenal cortex.