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