[pi-too-i-ter-ee gland, pi-tyoo‐]/ pɪˈtu ɪˌtɛr i ˌglænd, pɪˈtyu‐ /
noun
Anatomy.
a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region anterior pituitary, oradenohypophysis that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region posterior pituitary, orneurohypophysis that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part pars intermedia, derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
pituitary gland
British
noun
Also called: hypophysis.
hypophysis cerebri.
the master endocrine gland, attached by a stalk to the base of the brain. Its two lobes (the adenohypophysis and neurohypophysis) secrete hormones affecting skeletal growth, development of the sex glands, and the functioning of the other endocrine glands See also adenohypophysisneurohypophysis
A gland at the base of the brain in vertebrate animals that is divided into two regions, anterior and posterior, each of which secretes important hormones. The anterior portion, whose secretions are directly controlled by the hypothalamus, produces hormones that regulate the function of most of the body's hormone-producing glands and organs, including the thyroid and adrenal glands. Growth hormone is also produced by the anterior pituitary. The posterior pituitary releases antidiuretic hormone (ADH) and oxytocin.
pituitary gland
Cultural
A small gland, attached to the base of the brain and controlled by the hypothalamus, that functions in the endocrine system. The pituitary gland secretes many hormones: some control the actions of other glands, whereas others influence growth, metabolism, and reproduction.
The reviewers were particularly concerned with the compound’s potential to harm pregnant women and children, as well as its effect on the pituitary gland.
There he became interested in a leading problem of the day — that of how the brain controls the pituitary gland, the maestro organ that cues production of the body’s other major glands.
“When we remove the pituitary gland, we don’t know exactly what happens. They become food-oriented — eat, eat. We have to do some behavior modification,” says Owen.
He was thus able to prove beyond a doubt that the pituitary gland was essential to life, and that without it no animal could continue to live for any length of time.
