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STD 11 - 19. Chemical coordination and integration — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 19. Chemical coordination and integration4 Marks
MCQ
Gigantism and acromegaly are due to
  • A
    Hypothyroidism
  • B
    Hyperthyroidism
  • C
    Hypopituitarism
  • ✓
    Hyperpituitarism
✓

Answer

Correct option: D.
Hyperpituitarism
d
Hypersecretion of growth hormone ($GH$) or somatotrophin hormone ($STH$) from adenohypophysis or anterior lobe of pituitary gland causes gigantism in children and acromegaly in adulthood. Gigantism involves excessive growth (lengthening) of bones with enlargement of internal organs as well. Acromegaly causes abnormal thickening of bones (due to ossification of periosteum) especially at face and margins of hand and feet.

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