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Name the two hormones that act on bone in the homeostatic regulation of calcium, and the...

Name the two hormones that act on bone in the homeostatic regulation of calcium, and the glands that secrete these hormones

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The two hormones that act on bone in the homeostatic regulation of calcium are :

  1. Calcitonin
  2. Parathyroid hormone

1) Calcitonin

  • It is secreted from thyroid gland (parafollicular cells of thyroid gland).
  • It acts on bone to increase bone mass by promoting calcium deposition in bone.
  • It decreases blood calcium levels.

2) Parathyroid hormone

  • It is secreted from parathyroid gland.
  • It acts on bone to promote bone resorption and release bone calcium into the blood.
  • It increases blood calcium levels.
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