How Do Human Bones Form?

HipChep

Human bones are formed from growth plates which consist of columns of multiplying cartilage cells that grow in length. The cells then change into hard, mineralized bone and into a mature skeleton. Bone building is a life process that is facilitated by bone cells namely; osteoblasts, osteocytes and osteoclasts.

Photo Credit:

askabiologist.asu.edu source

Further Reading:

How Many Bones in a Human? – http://answers.ask.com/Health/Other/how_many_bones_in_a_human