Which cell is responsible for bone resorption?

Which cell is responsible for bone resorption?

• A. Osteocytes
• B. Chondroblasts
• C. Osteoclasts
• D. Osteoblasts

Answer: (C)

Osteoclasts are responsible for bone resorption. They are large, multinucleated cells that attach to the bone surface and create a sealed resorption area. By releasing acids and proteolytic enzymes, they dissolve the mineral portion and collagen of the bone matrix, releasing calcium and other minerals into the bloodstream. This resorption is a key part of bone remodeling, allowing old or damaged bone to be replaced and helping regulate mineral balance. Other cell types have different roles: osteoblasts build new bone, osteocytes maintain bone tissue, and chondroblasts form cartilage rather than bone.

Osteoclasts are responsible for bone resorption. They are large, multinucleated cells that attach to the bone surface and create a sealed resorption area. By releasing acids and proteolytic enzymes, they dissolve the mineral portion and collagen of the bone matrix, releasing calcium and other minerals into the bloodstream. This resorption is a key part of bone remodeling, allowing old or damaged bone to be replaced and helping regulate mineral balance. Other cell types have different roles: osteoblasts build new bone, osteocytes maintain bone tissue, and chondroblasts form cartilage rather than bone.