| A | B |
|---|
| system | a group of body parts that work together to perform a job |
| organ | a body part that does a special job within a body system |
| tissue | a group of cells that look alike and work together to do a certain job |
| cell | the basic unit of all living things, including the human body |
| cartilage | a tough, rubbery tissue that makes up parts of the skeleton |
| joint | the place where two bones come together |
| ligament | a strong, flexible tissue that holds bones together at a joint |
| muscle | body tissue that moves part of the body |
| tendon | a strong cord of tissue that attaches a muscle to a bone |
| voluntary muscle | the kind of muscle that a person can control |
| involuntary muscle | the kind of muscle that works without a persons control |
