| A | B |
|---|
| voluntary | The ____ muscles work without your control |
| voluntary | Most ______ muscles are skeletal muscles. |
| voluntary | The ______ muscles are muscles you can control. |
| involuntary | The smooth muscles in many organs and the cardiac muscle are _______ muscles. |
| bones | The _____ protect important organs in the body and store minerals. |
| pivot | The top vertebrae in the neck form a _______ joint. |
| ball and socket | Shoulders and hips have ________ joints |
| immovable | The skull has ______ joints. |
| hinge | Elbows and knees have _______ joints |
| sprain | When a joint is twisted too hard, an injury called a _____ happens. |
| fracture | When a bone is put under too much pressure, a crack or break called a ______ happens. |
| muscle | A group of stretchy tissues that mofes parts of the body |
| ligament | a strong, elastic tissue that connects bones |
| cartilage | a group of stretchy tissues that moves parts of the body |
| joint | a place where bones come together |
| vertebra | a bone in the spine |
| skeletal | The ______ muscular system includes the bones and the muscles attached to them. |
| repair | Bones are living tissues that grow and ______ themselves |
| calcium | _____is a mineral that makes bones strong and hard. |
| marrow | ______ makes new blood cells in some bones. |
| skull | The bone in the head. |
| ribs | They protect major organs. |
| pelvis | The bones around our hip area. |
| femur | The biggest bone |
| patella | The bone around the knee. |
