Across
- 3. Cava
- 7. WBC
- 9. composed of cardiac muscle tissue
- 12. RBC
- 13. Artery
- 15. carries blood towards the heart
Down
- 1. largest artery in the human body
- 2. fluid-filled sac that surrounds your heart
- 4. upper chambers of the heart
- 5. Vein
- 6. Lower chambers of the heart
- 8. Platelet
- 10. network between the arterioles and venules
- 11. lines the inside chambers of the heart
- 14. carries blood away from the heart