Skeletal system

4. bones that are cube-shaped and contain mostly spongy bone
7. bones that are longer than they are wide and typically have a shaft with enlarged ends
8. A channel that runs lengthwise through compact bone and carries blood vessels and nerves
10. Mature bone cells found within the bone matrix
12. Canals that run at right angles to the central canals and connect them to the outside of the bone
14. a lightweight, porous type of bone found at the ends of long bones and inside flat bones
15. Tiny canals that radiate from the central canal to lacunae and connect bone cells to nutrients

1. Bones that do not fit into long, flat, or short bone categories
2. Concentric rings of bone matrix arranged around a central canal
3. Tiny cavities within the bone matrix that house osteocytes
5. The structural and functional unit of compact bone
6. Bones that are thin, flattened, and usually curved
9. skeleton that includes the bones of the limbs and the girdles that attach them to the body
11. a strong, dense type of bone that forms the outer layer of bones
13. skeleton that includes the bones that form the longitudinal axis of the body