Bones
The bones in our body form our skeleton. They help to support our body and protect important organs. Bones also store nutrients and minerals, and they are places where blood cells are made. Humans have more than 200 bones in their bodies – all of different shapes and sizes. Like other parts of our body bones keep changing all the time. They are alive and grow, especially when you are young.
Parts of a bone
http://www.english-online.at/biology/bones/human-bones.htm
