Across
- 2. formed by a group of cells
- 5. the smallest unit of living things
- 7. an important organ that helps with digesting food
- 12. the system that transports oxygen and nutrients throughout the body
- 14. the organ that controls the movement of your lungs
- 18. the organ you use to smell things
- 19. these are used to communicate with cells in the endocrine system
- 22. the organ that controls all your thoughts and emotions
- 23. the system that defends your body against disease
Down
- 1. your nose and your ear are this
- 3. the organ you use to see
- 4. these make up your skeleton
- 6. the organ that pumps blood throughout your body
- 8. an organ that you use when breathing
- 9. formed by a group of tissues
- 10. the muscle tissue type that makes up your heart
- 11. the fluid that transports oxygen in the cardiovascular system
- 13. the organ you use to hear
- 15. a part of the integumentary system
- 16. a system that you use when you are dancing
- 17. the lymph nodes in your neck are part of this system
- 20. the system that controls bodily activities
- 21. the largest organ of the human body