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MzChoo
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What does the hormones secreted by the anterior pituitary gland regulate?
Growth, metabolism, pigment changes, and sexual development.
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What does the posterior pituitary gland secrete?
Vasopressin aka antidiuretic hormone (ADH)
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What does the adrenal gland do?
Produce and secrete hormones that influence homeostasis and are life sustaining.
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What is primary pituitary dysfunction?
Problems w/in the anterior pituitary gland.
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What is secondary pituitary dysfunction?
Problems in the hypothalamus that change anterior pituitary function.
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What is Pituitary Hypofunction?
When one or more hormones is/ are undersecreted.
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What is Pituitary Hyperfunction?
When 1+ hormones is/ are oversecreted.
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What is hypopituitarism?
When a person has a deficiency of one or more anterior pituitary hormones, resulting in metabolic problems and sexual dysfunction.
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What is Panhypopituitarism?
Decreased production of all of the anterior pituitary hormones.
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Which hormones are the most life threatening if there is a deficiency in them and Why?
Adrenocorticotrophic hormone (ACDH) and thyroid stimulating hormone (TSH) because they result in a corresponding decrease in a secretion of vital hormones from the adrenal and thyroid glands.
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What does the presence of GH stimulate?
The liver to produce substances known as somatomedins.
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What does somatomedins do?
Enhance growth activities in cells and tissues.
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What is the most common cause of pituitary infarction?
Postpartum hemorrhage, which results in decreased hormone secretion.
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What is postpartum hemorrhage known as?
Sheehan's syndrome.
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What are some causes of hypopituitarism?
Benign or malignant tumors, anorexia nervosa, Shock or severe hypotension (reduce blood flow to the anterior pituitary gland), head trauma, brain tumors or infection, and postpartum hemorrhage (sheehan's syndrome).
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What are some neurologic manifestations of hypopituitarism?
Changes in vision, temporal headaches, diplopia (double vision), and ocular muscle paralysis
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What are stimulation tests?
Test done to test for pituitary function. It's when they inject something to stimulate secretion of specific pituitary hormones
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What are somatomedins?
Substances produced by the liver to enhance growth activities in cells and tissues.
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What is adrenal gland hypofunction?
When the production of adrenocorical steroids may decerase as a result of inadequate secretion of ACTH.
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What is Addison's Disease?
It's an Acute Adrenal insufficiency that's life threatening. It's when the need for cortisol and aldosterone is > the available supply.
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