Across
- 3. CAVA — Blood vessel carrying blood back to the heart from the body
- 4. — Fluid that moves through lymphatic vessels
- 5. — Largest artery in the body
- 7. — Blood vessel that carries blood away from the heart
- 8. VENTRICLE — Chamber of the heart that pumps oxygenated blood to the body
- 9. DIOXIDE — Gas removed when exhaling
- 10. — Side of heart that handles oxygen-poor blood
- 11. — Prevents blood from flowing backward in the heart
- 13. — Organ that filters blood and supports immunity
- 16. — Voice box
- 17. — Branches from trachea into lungs
Down
- 1. — Muscle that helps breathing
- 2. — Main job of capillaries is exchange of gases, nutrients, and ___
- 4. — White blood cells important in immunity
- 6. — Main function of red blood cells is to carry this
- 12. — Tiny air sacs where gas exchange occurs
- 14. NODES — Structures that filter lymph
- 15. — Gas humans breathe in