Bone tissue types - compact and spongy

Bone tissue types • There are two types of bone tissue: compact and spongy. • All the bones of the skeleton have both kinds of bone tissue. • Compact (dense) bone • Arranged in osteons (Haversian systems), units of lamellae laid down in adjoining series of concentric rings. • Protective and supportive along the horizontal axis. • Found in areas that need strength. • Spongy (cancellous) bone • Lamellae arranged in branching columns called trabeculae. • Spaces between trabeculae are filled with either red or yellow marrow. • Found in areas where stress is applied from many directions such as the epiphyses of long bones and the bones of the skull.

Add To

You must login to add videos to your playlists.