Perhaps you are thinking of what is called the master gland: the pituitary gland. It is about the size of a green pea and located at the base of the brain.
The brain, via the hypothalamus, and via the pituitary gland.
thyroid gland
the thyroid
Stimulates other endocrine glands. Regulates the growth.
The pituitary gland is sometimes called the master gland because it releases a number of tropic hormones which influence the activities of other endocrine glands.
the pituitary glands
The pituitary gland is often referred to as the "master gland," because it controls so many other glands.
Pituitary gland
The set of glands that regulate the activities of certain organs is called the endocrine system. The endocrine system releases chemical products into the bloodstream.
the pituitary glands
the pituitary glands
the pituitary glands
the pituitary glands
the pituitary glands