Across
- 2. exchange between the blood and body tissue
- 5. transports blood to the heart
- 6. another term for platelet
- 9. transport oxygenated blood
- 11. smooth layer of inside the heart
- 12. transport oxygenated poor-blood
- 14. counteracting foreign substances and disease
Down
- 1. muscular layer of the heart
- 3. main artery in the body
- 4. 2 lower chambers in the heart
- 5. carries blood to the heart
- 7. transports blood away from the heart
- 8. keeps the heart in a stable location
- 10. 2 upper chambers in the heart
- 13. transporting carbon dioxide back to the lungs