Across
- 2. system that involves breathing
- 4. system involves glands from the human body
- 6. system that involves bones
- 7. system that involves heart and blood vessels
- 8. system that involves mouth
- 10. system that involves messages to the brain
Down
- 1. system that involves babies
- 3. system that involves waste
- 5. system that involves muscles
- 9. system that defends the body against infection