The posterior pituitary gland does not produce hormones. It acts as a storage and release site for hormones produced by the hypothalamus.

Here's a breakdown:

* Hypothalamus: This part of the brain synthesizes two hormones:

* Antidiuretic hormone (ADH): Also called vasopressin, ADH regulates water balance by controlling reabsorption in the kidneys.

* Oxytocin: This hormone plays roles in social bonding, childbirth (stimulating uterine contractions), and lactation.

* Posterior Pituitary: The hypothalamus releases ADH and oxytocin into the posterior pituitary, where they are stored and released into the bloodstream.

Therefore, the posterior pituitary itself doesn't make these hormones but is crucial for their release into the body.