Multiple choice

A hormone 'X' secreted from parafollicular cells of 'Y' gland stimulates osteoblasts. What are X and Y?

  1. Calcitonin, thyroid gland

  2. Thyroxine, thyroid gland

  3. Oxytocin, posterior pituitary

  4. Vassopressin, anterior pituitary

  5. Triiodothyronine, parathyroid gland

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A Correct answer
Explanation

Calcitonin hormone is secreted by parafollicular cells of thyroid gland stimulates osteoblasts and thus bone construction.