So previously, we focused on only the anterior pituitary gland and we said that the anti anterior your pituitary gland releases and produces six different types of hormones. So the human growth hormone ACTH, also known as the adrenocorticotropic hormone, it produces the thyroid stimulating hormone, it produces our prolactin, the follicle stimulating protein, as well as the luteinizing protein. So all these six different proteins are produced in the endocrine cells in the anterior pituitary gland and they're basically controlled by the hormones produced in the hypothalamus, the region in the brain found in the forebrain. So the hypothalamus basically produces a set of hormones of its own that ultimately are injected into the capillary bat system found within this region. This entire capillary vein artery system is known as our hypothesial portal system and it basically connects the hypothalamus to the anterior pituitary gland. So the hormones in the hypothalamus are released into the portal system and they control the release of these hormones in the endocrine cells of the anterior pituitary gland.