By: Ladon Neal & Jordan Sarmento
Levels of Organization
Structure of the bone
A thin tough membrane covers all parts of the bone except the ends. Blood vessels and nerves enter and exit the bone using the membrane. Under the membrane is a dense layer called compact bone. Canals that are very small flow through the compact bone containing nerves and blood vessels from the surface of the bone to living cells in the bone. The inner layer of the compact bone is a spongy layer filled with small spaces throughout the interior.