NRS 220 Chapter Notes - Chapter 31: Pituitary Gland, Anterior Pituitary, Posterior Pituitary
28 Jan 2019
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Document Summary
Pituitary gland = master gland (base of skull) Over-secretion is the most common cause of pituitary disorders. Head trauma: anterior pituitary hypo-function: a ects the hormones. Tsh > targets thyroid tissue stimulates bone formation. Acth > targets adrenal cortex stimulates synthesis and release of cortisol. When adrenals receive pituitary glands signal > acth. Lh (leutenizing hormone) women: stimulates maturation of ova/ovulation men: stimulates production of testosterone. Fsh (follicle stimulating hormone ) women: stimulates growth of ovarian follicles and estrogen sectretion men: stimulates sperm production. Adh (vasopressin) > targets kidneys water reabsorption = decreased urine output controls is urine is dilute or concentrated (amount of water) Blocking adh = increased water output dilute urine = low salt. Low adh = diabetes insipidus (di) > large amounts of dilute urine. Low level of adh equals excessive urinary output. High level of adh equals low urinary output. Diabetes insipidus: low adh polydipsia large amounts of dilute urine (2-3 l/day or more)
