Across
- 4. The system that controls the body's actions and responses through the brain and nerves.
- 5. The system that helps protect the body from disease and infection.
- 6. The system that helps you breathe in oxygen and release carbon dioxide.
- 8. The system made up of muscles that help the body move.
Down
- 1. The system that breaks down food into nutrients for the body.
- 2. The system that transports blood and nutrients throughout the body.
- 3. The system that removes waste from the body.
- 7. The system of bones that supports the body and protects organs.