It's located at the base of the brain, just below the hypothalamus. While not the largest gland, it's crucial because it controls the activity of many other glands throughout the body, including:

* Thyroid gland: Regulates metabolism.

* Adrenal glands: Produce stress hormones like cortisol.

* Ovaries (in females) and testes (in males): Produce sex hormones.

* Other glands: It also influences growth, blood pressure, water balance, and even childbirth.

Therefore, the pituitary gland is often called the "master gland" due to its role in orchestrating the functions of other endocrine glands.