1. Tardigrade
  2. Question
  3. Biology
  4. Thyroxine is secreted by :

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Q. Thyroxine is secreted by :

AFMCAFMC 2003

Solution:

Thyroid gland secretes three hormones :
(i) Thyroxine,
(ii) Tri-iodothyronine
(iii) Calcitonin.
Thyroid gland is stimulated to secrete its hormone by a pituitary gland hormone TSH (Thyroid Stimulating Hormone). Thyroxine increases BMR (Basal Metabolic Rate) and stimulates growth, tissue differentiation and metamorphosis of tadpoles into adult frog.