Skeletal muscles move the bones in the body. The skeletal system is made from bones and joints. The femur bone in the thigh is the longest and strongest bone in the body. The smallest bones in the ...

In vertebrates, the skeleton ... system. The precursor cells of the spine and ribs are somitic mesoderm cells, which arise from the sides of the embryo's back and form -- besides bones -- also ...

The trillions of cells that make up our skeleton age too, and some change in ways that weaken the very structure of our bones ... Medical Center just made a major break in the case.