This document discusses hyperpituitarism and hypopituitarism, which are conditions related to increased or decreased secretion of hormones by the pituitary gland. Hyperpituitarism involves increased secretion of growth hormone and antidiuretic hormone, which can cause acromegaly or gigantism from excess growth hormone, or syndrome of inappropriate antidiuretic hormone secretion from excess antidiuretic hormone. Hypopituitarism involves decreased secretion of pituitary hormones and can be caused by tumors, congenital defects, or pituitary surgery. It can affect growth, puberty, thyroid function, stress response, and other areas depending on which hormones are deficient.
2. It is the major endocrine gland, a pea-sized body attached to the
base of the brain that is important in controlling growth and
development and the functioning of the other endocrine glands.
That’s why it is also called master gland or hypopises .
it is located in the hypophyseal fossa of the sphenoid bone.
Attached with the hypothalamus by a stalk. weighted about 500
mg.
Pituitary Gland
4. ∗ There are some conditions in which there is the disturbance
of pituitary gland mainly occur i-e
∗ Either there is increase secretion of pituitary which is called
Hypopituitarism or the decrease production which is called
Hypopituitarism
6. Hyperpituitarism
GH (Growth Hormones)
∗ Adult
∗ Acromegaly
∗ abnormal growth of the hands, feet, and face, caused by
overproduction of growth hormone by the pituitary
gland.
∗ Child
∗ Gigantism
ADH (Antidiuretic Hormones)
∗ Syndrome of Inappropriate Antidiuretic Hormone
(SIADH)
7. Syndrome of Inappropriate Antidiuretic
Hormone (SIADH)
∗ Definition
∗ The syndrome of inappropriate antidiuretic hormone (ADH)
secretion (SIADH) is defined by the hyponatremia and hypo-
osmolality resulting from inappropriate, continued secretion or
action of the hormone despite normal or increased plasma volume,
which results in impaired water excretion.
∗ What does ADH do?
∗ Causes kidneys to reabsorb water
∗ urine output
∗ fluid volume