The bone structure in your body and helps you move

The armor of the skeletal system that helps the body and circulates blood

A system of organs that turn food into energy.

Help take in oxygen and send out carbon dioxide.

Takes air in one side and sends it around the body and sends carbon dioxide out.

A network of nerve cells that transmit nerve impulses between parts of the body.

A system that protects the body from viruses and unwanted germs

CELLS in the body that fight of viruses.

A microorganism that can cause a virus

A process that takes place in a cell takes energy from nutrients