Q:

Thyrocalcitonin

0

 Thyrocalcitonin.


  1. Is produced by the follicular cells of the thyroid gland.
  2. Increases basal metabolic rate.
  3. Reduces blood calcium in parathyroidectomized animals.
  4. Secretion occurs when the blood phosphate level rises.
  5. Stimulates osteoclast activity.

All Answers

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A. False It is produced by ‘parafollicular’ cells in the thyroid thought to be derived from the ultimobranchial bodies.

B. False It does not affect basal metabolic rate.

C. True Its action is independent of the parathyroid glands.

D. False It is secreted when the blood calcium level rises.

E. False It stimulates bone deposition by osteoblasts.

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