A fully developed bone is made up of
mineral salts, water and tissue. There are two types of bone
- compact and cancellate. A compact bone is smooth and
solid, while a cancellate bone is a much lighter structure.
The structure of the cancellate bone is similar to a
honeycomb. All bones are a combination of cancellate and
Inside each bone is a jelly like
substance. This is called bone
marrow and is at the center of
the bone. This marrow produces blood cells for the body.
Blood vessels run through the center of the bone so that the
bone receives food, oxygen and minerals.