During Deposition What Are Osteoblasts Doing with Calcium?

Osteoblasts deposit calcium by mechanisms including phosphate and calcium transport with alkalinization to absorb acid created by mineral deposition; cartilage calcium mineralization occurs by passive diffusion and phosphate production. Calcium mobilization by osteoclasts is mediated by acid secretion.

What role do osteoblasts play in calcium regulation?

Osteoblasts signal osteoclasts, which lead to increased bone resorption and mobilization of calcium and phosphate.

Does calcium increase osteoblast activity?

Calcium supports PTH effects on osteoblast proliferation and bone formation.