You are born with 270 bones! But, by the time you become an adult, you only have 206 bones because some of the bones join together as you grow. Bones support and protect the organs in your body, produce blood cells, store minerals, and allow your joints to move. Your bone is alive and can repair itself if it is broken. Bone can get bigger and stronger from exercise or lifting weights and smaller and weaker if you don’t exercise enough.
Hover over the skeleton to learn all of the bones!