In compact bone, concentric lamellae form around which structure?

In compact bone, concentric lamellae form around which structure?

• A. Center of the Bone
• B. Central Canal
• C. Osteon
• D. Trabecula

Answer: (B)

Concentric lamellae are the ring-like bone layers that wrap around a central passageway inside each osteon of compact bone. This central canal runs through the core of the osteon and contains blood vessels and nerves, so the lamellae form circular rings around that essential channel to create the cylindrical Haversian system. The central canal is the structure they encircle, not just the general center of the bone; the osteon is the whole unit that contains these rings around the canal, and trabeculae are features of spongy bone, not the compact bone’s concentric arrangement.

Concentric lamellae are the ring-like bone layers that wrap around a central passageway inside each osteon of compact bone. This central canal runs through the core of the osteon and contains blood vessels and nerves, so the lamellae form circular rings around that essential channel to create the cylindrical Haversian system. The central canal is the structure they encircle, not just the general center of the bone; the osteon is the whole unit that contains these rings around the canal, and trabeculae are features of spongy bone, not the compact bone’s concentric arrangement.