Across
- 2. An organ that pumps blood throughout the body
- 4. The part of the brain responsible for balance and coordination
- 5. A type of blood vessel that carries blood toward the heart
- 8. The muscle responsible for breathing
- 11. A type of muscle found in the heart
- 12. A gland that produces insulin
- 13. The voice box
- 16. An organ that filters blood and produces urine
- 17. A tube that carries food from the mouth to the stomach
- 18. A fluid that circulates through the cardiovascular system
- 19. Connective tissue that attaches muscle to bone
Down
- 1. The functional unit of the kidney
- 3. Small air sacs in the lungs
- 6. The largest bone in the body
- 7. A pigment that gives skin its color
- 9. The colorless, watery part of blood
- 10. The longest part of the digestive system
- 11. The clear outer layer of the eye
- 14. The basic unit of the nervous system
- 15. A bone that protects the brain