hard living tissue bone
the group of bones that forms the frame for your body skeleton
a soft, jellylike material in the bones that the body uses to produce new blood cells marrow
a place where two or more bones come together joint
a strong, elastic tissue that connects the bones ligament
a strong, flexible tissue found in joints cartilage
a group of stretchy tissues that moves parts of the body muscle
the bones and the muscles that attach to them skeletal muscular system
a muscle you can control voluntary muscle
a muscle that works without your control involuntary muscle
a crack or break in a bone fracture
what happens when a muscle is stretched too far strain
what happens when a joint is twisted too hard sprain