The posterior pituitary gland is the portion which comes from and retains a direct connection with the base of the brain. The hormones of the posterior pituitary gland are actually produced in the hypothalamus of the brain. From the hypothalamus, the hormones are delivered to the posterior pituitary gland, where they are released into the bloodstream. At present, we recognize two hormones of the posterior pituitary gland.
a. ADH (Antidiuretic Hormone). ADH is involved with the resorption or salvaging of water within the kidneys. ADH is produced under thirst conditions.
b. Oxytocin. Oxytocin is concerned with contractions of smooth muscle in the uterus and with milk secretion.
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