Across
- 3. : Lower chamber of the heart
- 5. : Circulation between the heart and lungs
- 7. Cava : Vein that brings deoxygenated blood back to the heart
- 8. : The largest artery in the human body
- 10. : Scientific name for a white blood cell
- 11. : Heart muscle relaxation phase
- 13. : Nickname for the SA node that regulates heartbeat
- 14. : Heart muscle contraction phase
Down
- 1. : Protein that carries oxygen in red blood cells
- 2. : Liquid portion of blood
- 4. : Blood vessel carrying blood away from the heart
- 5. : Cell fragments involved in blood clotting
- 6. : Upper chamber of the heart
- 9. : Blood vessel carrying blood toward the heart
- 12. : Scientific name for a red blood cell