Across
- 3. Blood vessels that carry blood back to the heart
- 4. The system that includes the heart and blood vessels
- 7. A type of vessel that connects arteries and veins
- 11. The protein in red blood cells that carries oxygen
- 12. The red liquid that carries oxygen and nutrients
- 13. The organ that pumps blood around the body
- 14. The organ where blood picks up oxygen
- 15. Cells that help blood clot
- 16. Tiny blood vessels where exchange of gases happens
Down
- 1. The force that pushes blood through vessels
- 2. The movement of blood around the body
- 5. The liquid part of blood
- 6. The gas that blood carries from the lungs to the body
- 8. Blood vessels that carry blood away from the heart
- 9. Cells that carry oxygen
- 10. Cells that help fight infection