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13 Cards in this Set

  • Front
  • Back
What controls pituitar yhormones
hypothalamus
What hormones does hypotlamus release
ADH and
oxytocin
Where is the pituitary located
under the optic chiasma
describe pituitary adenoma, how does it present, how do you treat
10% of cranial lesion -- most common prolactinoma -- presents with visual changes due to pressure on optic chiasm -- treat with dopamine against and radiation
Growth Hormone - what are the effects of Growth Hormone
increaes growth through somatomedins, primarily IGF-1
metabolic effects: increases fatty acid levels in blood by enhancing breakdown of triglyceride fat stored in adipose tissue -- increases blood glucose levels by decreasing glucose uptake by muscles
What is Laron syndrome
Laron syndrome or Laron-type dwarfism, is an autosomal recessive disorder characterized by an insensitvity to GH.
What causes just plain dwarfism
hyposecretion of GH.
What cause acromegally, how does it affect bones
too much GH, most often from pitutiary adenoma
bones widen because epiphyseal plates are closed
What does the posterior pituitary secrete?
oxytocin - stimulates uterine contractions, milk ejecton
ADH - stimulates retention of water,
Diabetes Insipides - symptoms, treatment
polyuria, excessive thirst, treate with vasopressin
due to problem with pituitary which prevents release ADH
parathyroid - produces?, what does it do
produces PTH
mobilizes calcium from bone into blood, enhances absorption o calcium n small intestinge, supresses calcium loss in urine
What does hypoparthyroidism cause?
results in decrease of calcium and increased phosphorous in blood, leads to tetany and convulsions,
casue of hypoparathyroidism
Treatment
surgical removal of parathyroid, congenital abscence, MAGNESIUM DEFICIENCY
Tx: calcium and vitamin D