Pituitary gland: The main endocrine gland. It is a small structure in the head. It is called the master gland because it produces hormones that control other glands and many body functions including growth. The pituitary consists of the anterior and posterior pituitary.
The anterior pituitary is the front portion of the pituitary. Hormones secreted by it influence growth, sexual development, skin pigmentation, thyroid function, and adrenocortical function. These influences are exerted through the effects of pituitary hormones on other endocrine glands except for growth hormone which acts directly on cells.
The effects of underfunction of the anterior pituitary include growth retardation (dwarfism) in childhood and a decrease in all other endocrine gland functions normally under the control of the anterior pituitary (except the parathyroid glands). The results of overfunction of the anterior pituitary include overgrowth (gigantism) in children and a condition called acromegaly in adults.
The posterior pituitary is the back portion of the pituitary. It secretes the hormone oxytocin which increases uterine contractions and antidiuretic hormone (ADH) which increases reabsorption of water by the tubules of the kidney. Underproduction of ADH results in a disorder called diabetes insipidus characterized by inability to concentrate the urine and, consequently, excess urination leading potentially to dehydration. The urine is "insipid" (overly dilute).
Library > Literature & Language > Dictionary n. A small oval endocrine gland attached to the base of the vertebrate brain and consisting of an anterior and a ...
The pituitary gland is sometimes called the ... UMMC's Diabetes and Endocrinology Program ranked as one of the nation's 50 best by U.S. News & World Report's 2010 "Best ...
Your pituitary gland produces many different types of hormones, and disorders such as a pituitary gland tumor can severely affect your health. Learn more at Hormone.org.
Description of pituitary gland and its function. ... The pituitary gland is a pea-sized gland located at the base of the skull between the optic nerves.
Located at the base of the skull, the pituitary gland is protected by a bony structure called the sella turcica of the sphenoid bone