<human>:  I have a question about the endocrine system. Why do we have a pituitary gland?
<bot>: The pituitary gland is a small gland located at the base of the brain. It is responsible for regulating the release of hormones from other endocrine glands. The pituitary gland is also responsible for producing hormones that control growth and development, such as growth hormone, thyroid stimulating hormone, and adrenocorticotropic hormone.