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Chemical Coordination and Integration question

2002 · Q16
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Chemical Coordination and Integration question

2002 · Q16

NEETBiologyChemical Coordination and IntegrationMCQ+4 / −1
Acromegaly is caused by
  1. A
    excess of STH
  2. B
    excess of thyroxine
  3. C
    deficiency of thyroxine
  4. D
    excess of adrenaline.
View written solutionFree

Correct answer: A

Acromegaly is caused by excess of STH (somatotrophic hormone), released by anterior lobe of pituitary after adolescence. The bones of the lower jaw and limbs become abnormally enlarge but the body does not attain a giant stature. Excess of thyroxine causes cretinism and myxoedema. Excess of adrenaline causes increased BMR (Basal Metabolic Rate), heart beat, excitement, etc.

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