Across
- 2. top right chamber of heart
- 4. bottom right chamber of heart
- 5. muscle layer of heart tissue
- 9. chamber that pumps blood to the body
- 10. fluid filled sac that surrounds heart
- 11. largest artery in the body
- 12. pace maker of the heart
- 14. found on right side of heart
- 15. nerve fibers that travel through ventricles
- 16. inner layer of heart tissue
Down
- 1. top left chamber of heart
- 3. bundle of nerves causing ventricles to contract
- 6. found on left side of heart
- 7. largest vein in the body
- 8. vessels that carry blood from lungs to heart
- 10. vessel that carries blood to lungs
- 13. outer layer of heart tissue