Calcitonin role?

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Multiple Choice

Calcitonin role?

Calcitonin lowers blood calcium by shifting bone remodeling toward formation and away from resorption. When calcium is high, calcitonin helps dampen the activity of osteoclasts and supports osteoblast activity, so more calcium is deposited into bone and less is released into the bloodstream. This combination explains why the description that calcitonin activates osteoblasts and decreases calcium fits best. It doesn’t work by inhibiting vitamin D activation, and it doesn’t increase phosphate reabsorption in the kidney, so those statements aren’t part of its primary role.

Calcitonin lowers blood calcium by shifting bone remodeling toward formation and away from resorption. When calcium is high, calcitonin helps dampen the activity of osteoclasts and supports osteoblast activity, so more calcium is deposited into bone and less is released into the bloodstream. This combination explains why the description that calcitonin activates osteoblasts and decreases calcium fits best. It doesn’t work by inhibiting vitamin D activation, and it doesn’t increase phosphate reabsorption in the kidney, so those statements aren’t part of its primary role.

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