Multiple choice

Osteoclasts are inhibited by

  1. parathyroid hormone

  2. calcitonin

  3. 1, 25-dihydroxycholecalciferol

  4. tumour percrosis

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  1. Calcitonin inhibits bone resorption by direct action on osteoclasts.
    1. Calcitonin exerts its calcium-lowering effects by inhibiting bone resorption. This action is direct.
    2. Calcitonin inhibits the activity the activity of osteoclasts in vitro.

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