Across
- 5. movement to and fro or around something
- 7. What does vessel mean in the body? A tube through which the blood circulates in the body
- 9. connects arteries and veins.
- 10. blood vessels that carry blood away from the heart to the rest of body
Down
- 1. O2
- 2. organ that pumps blood throughout body
- 3. blood vessels that carry blood back to the heart
- 4. allows blood to flow in one direction
- 6. CO2
- 8. a red fluid that carry oxygen/nutrients