What main three hormones have a significant effect on bone growth?

• 1) parathyroid hormone or PTH

2) calcitriol

3) calcitonin

Explanation:

There are three main calcium-regulating hormones that are essential for bone health.

• Parathyroid hormone (PTH) helps maintain calcium level and stimulating formation of the bone as well as its resorption. The normal bone destruction is by the osteoclasts, which are controlled indirectly by PTH.
• Calcitonin inhibits the breakdown of bones, and ensures the levels of calcium in the blood is maintained at the optimum levels. This hormone increases bone remodelling by the osteoblasts.
• Calcitriol is a hormone derived from vitamin D, which is useful in stimulating the intestines to absorb enough calcium and phosphorous.