Across
- 2. - Throbbing of arteries due to heartbeat.
- 4. - Blood vessel that carries blood toward the heart.
- 5. - Phase when heart relaxes to fill with blood.
- 7. Blood Cell - Fights infections in the body.
- 10. - Protective sac around the heart.
- 11. - Largest artery in the body.
- 12. - Protein in red blood cells that carries oxygen.
- 14. - Phase when heart contracts to pump blood.
- 16. Blood Cell - Carries oxygen using hemoglobin.
- 17. - Blood low in oxygen.
- 18. - Related to the lungs.
- 19. - Prevents backflow of blood in the heart.
Down
- 1. - Muscular tissue of the heart.
- 2. - Cells that help in blood clotting.
- 3. - Movement of blood throughout the body.
- 4. Cava - Large vein carrying blood to the heart.
- 6. - Lower chamber of the heart that pumps blood out.
- 8. - Smallest blood vessels where gas exchange occurs.
- 9. - Upper chamber of the heart that receives blood.
- 12. - Organ that pumps blood throughout the body.
- 13. - Blood rich in oxygen.
- 15. - Blood vessel that carries blood away from the heart.