Which type of cell is primarily involved in the formation of new bone?

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

Answer: (C)

The primary role of osteoblasts is to generate new bone tissue. These specialized cells are responsible for synthesizing the bone matrix, which is made up of proteins and minerals that provide structure and strength to the bone. Osteoblasts produce the organic components of the bone matrix, primarily collagen, and play a crucial role in the mineralization process, incorporating calcium and phosphate to form hydroxyapatite crystals that give bones their hardness.

Osteocytes, on the other hand, are mature bone cells that derive from osteoblasts. While they play a significant role in maintaining bone tissue and communicating signals related to bone remodeling, they are not primarily involved in forming new bone.

Osteoclasts are large cells that break down bone tissue, playing a critical role in bone resorption and remodeling, rather than the formation of new bone.

Chondrocytes are cells found in cartilage, contributing to its formation and maintenance, but they do not play a direct role in bone formation.

Therefore, osteoblasts are the key players in producing new bone, making them the correct answer.