Across
- 3. how oxygen is used throughout the body
- 6. the internal framework of the body
- 7. how waste products are removed from our body
- 11. how our bodies react to environmental changes
- 13. how blood is transferred through our bodies
- 14. excrete a variety of waste products
- 15. allows us to sense and respond to stimuli
- 16. covers the entire body
Down
- 1. organ system consisting of skeletal, smooth, and cardiac muscle.
- 2. pumps blood through the veins
- 4. aids in digestion
- 5. responsible for adding oxygen to and removing carbon dioxide from the blood
- 6. largest organ
- 8. targets and destroys invading pathogens in the body
- 9. rids your body of toxic substances
- 10. organ of hearing
- 12. breaks down food into nutrients