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The Endocrine System — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyThe Endocrine System1 Mark
MCQ
Cretinism and Myxoedema are due to:
  • A
    Hypersecretion of thyroxine
  • B
    Hypersecretion of growth hormone
  • ✓
    Hyposecretion of thyroxine
  • D
    Hyposecretion of growth hormone
✓

Answer

Correct option: C.
Hyposecretion of thyroxine
(c) Hyposecretion of thyroxine
Explanation :
Cretinism is a condition that occurs in infants and children due to a lack of thyroid hormone and leads to stunted physical and mental growth. Myxoedema refers to a severe form of hypothyroidism in adults, characterised by symptoms like weight gain, lethargy, and thickened skin. Both conditions result from hyposecretion of thyroxine, a hormone produced by the thyroid gland.

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