Your spine is one part of the skeleton that's easy to
checkout: reach around to the center of your back and
you'llfeelits bumps under yourfingers.The spine lets
you twist and bend, and it holds your bodyupright. It
also protects the spinal cord, a Iarge bundle ofnerves
that sends information from your brain to the restof
your body. The spine is special because it isntmade
ofone or even two bones: it's made.of 26 bones in a山
Thesebones are called vertebrae, and each one is
shaped like aring. There are five types of vertebrae in
the spine, and eachdoes a different kind ofjob.
