Where does bone deposit and reabsorption occur?

Where does bone deposit and reabsorption occur?

• A. Between the periosteum and the endosteum
• B. Within the medullary cavity
• C. On the articular cartilage
• D. Within the periosteum only

Answer: (A)

Bone remodeling happens on the surfaces of bone where osteoclasts and osteoblasts work together. The inner surface lining the cavity is the endosteum, and the outer covering is the periosteum. Deposition of new bone and resorption of old bone occur along these surfaces, i.e., in the region between the periosteum and the endosteum. The medullary cavity houses marrow and isn’t the site of active bone remodeling, while articular cartilage sits at joints and isn’t bone undergoing remodeling. So the site where bone deposition and resorption take place is the surface between the periosteum and the endosteum.

Bone remodeling happens on the surfaces of bone where osteoclasts and osteoblasts work together. The inner surface lining the cavity is the endosteum, and the outer covering is the periosteum. Deposition of new bone and resorption of old bone occur along these surfaces, i.e., in the region between the periosteum and the endosteum. The medullary cavity houses marrow and isn’t the site of active bone remodeling, while articular cartilage sits at joints and isn’t bone undergoing remodeling. So the site where bone deposition and resorption take place is the surface between the periosteum and the endosteum.