Bone: the tissue

This tissue is composed of both woven and lamellar bone. Immature, woven bone is gradually resorbed and replaced by the stronger, mature lamellar bone. During this process, some areas will be composed of both woven bone and lamellar bone, as shown here. 600x

Woven bone lacks lamellae and osteocyte lacunae an irregularly arranged within the matrix. Lacunae are rounder than are those in mature bone and the matrix has a more bluish tint (not well shown here). Woven bone is not as strong as lamellar bone.

Mature bone is arranged in lamellae with orderly arranged, flattened lacunae located between the lamellae. This organization gives lamellar bone more strength. In the bone shown here, the lamellae are arranged as cylindrical structures called Haversian systems or osteons with a central Haversian canal. This canal is lined by an endosteum and contains one or more blood vessels.

Mature bone is arranged in lamellae with orderly arranged, flattened lacunae located between the lamellae. This organization gives lamellar bone more strength. In the bone shown here, the lamellae are arranged as cylindrical structures called Haversian systems or osteons with a central Haversian canal. This canal is lined by an endosteum and contains one or more blood vessels.

Mature bone is arranged in lamellae with orderly arranged, flattened lacunae located between the lamellae. This organization gives lamellar bone more strength. In the bone shown here, the lamellae are arranged as cylindrical structures called Haversian systems or osteons with a central Haversian canal. This canal is lined by an endosteum and contains one or more blood vessels.

Mature bone is arranged in lamellae with orderly arranged, flattened lacunae located between the lamellae. This organization gives lamellar bone more strength. In the bone shown here, the lamellae are arranged as cylindrical structures called Haversian systems or osteons with a central Haversian canal. This canal is lined by an endosteum and contains one or more blood vessels.