Which membrane lines canals that pass through compact bone and covers trabeculae of spongy bone?

Which membrane lines canals that pass through compact bone and covers trabeculae of spongy bone?

• A. Endosteum
• B. Periosteum
• C. Perichondrium
• D. Synovial membrane

Answer: (A)

Endosteum is the thin membrane that lines the inner surfaces of bone. It covers the cavities and spaces inside bone, including the canals that pass through compact bone (the Haversian and Volkman’s canals) and the surfaces of the trabeculae in spongy bone. This lining houses osteogenic cells, which can become osteoblasts or osteoclasts to support bone growth, remodeling, and repair from within the bone itself. The outer covering of bone is the periosteum, while perichondrium lines cartilage, and synovial membranes line joint cavities.

Endosteum is the thin membrane that lines the inner surfaces of bone. It covers the cavities and spaces inside bone, including the canals that pass through compact bone (the Haversian and Volkman’s canals) and the surfaces of the trabeculae in spongy bone. This lining houses osteogenic cells, which can become osteoblasts or osteoclasts to support bone growth, remodeling, and repair from within the bone itself. The outer covering of bone is the periosteum, while perichondrium lines cartilage, and synovial membranes line joint cavities.