Across
- 2. What is the cavity inside a blood vessel?
- 4. What is the smallest blood vessel?
- 6. Is the lumen arteries narrow or wide?
- 9. What are the blood vessel with only one cell
Down
- 1. How is back flow prevented in the arteries?
- 3. What pumps blood around the body?
- 5. artery What blood vessels provide oxygen through the body?
- 7. Name the substance found in plasma?
- 8. Do veins have low blood pressure?