Across
- 3. blood cells/blood cells that carry oxygen from the lungs to the body and take away carbon dioxide to the lungs again
- 6. blood vessels that connect arteries to venues
- 7. transport substance to and from all parts of the body
- 9. two upper chambers of the heart
- 10. muscular organ that pumps blood through the body
Down
- 1. vessels that carry blood away from the heart
- 2. system/the body system that moves blood around the body
- 4. two lower chambers of the heart
- 5. vessels that carry blue blood back to the heart
- 8. pipe that allows blood to flow in only one direction