The human skeleton is made up of more than 200 ... and the ribcage protects the heart and lungs. But bones do sometimes get broken. Fortunately, they’re living things that can repair themselves.
The skeleton allows movement ... It is constantly being dissolved and formed and it can repair itself if a bone is broken. Calcium is important for this process. I just went for a run and my ...
Following is a transcript of the video. Your body is made up of over 200 bones, a few trillion microbes, and as many as 37 trillion cells. And while death is often thought of as the end of the ...