Which type of cell is responsible for the formation of new bone?

• A. Osteoclasts
• B. Osteoblasts
• C. Osteocytes
• D. Lining cells

Answer: (B)

The formation of new bone is primarily the function of osteoblasts. These specialized cells are responsible for synthesizing and secreting the components of the bone matrix, including collagen and other proteins. Osteoblasts play a crucial role in the mineralization process, which is essential for developing strong and healthy bone tissue. As they work, they help promote the adsorption of calcium and phosphate, which are vital for bone strength and density.

Osteoclasts, in contrast, are involved in the resorption of bone, meaning they break down bone tissue, which is a natural part of bone remodeling. Osteocytes are mature bone cells that monitor the bone's health and communicate with both osteoblasts and osteoclasts to regulate bone remodeling. Lining cells are flattened cells that cover the bone surface, but they do not actively participate in bone formation. Thus, osteoblasts are the key players in generating new bone, making this response the correct choice.