Across
- 1. white blood cell that engulfs pathogens
- 4. blood vessels in networks near tissues
- 6. carried by red blood cells
- 8. takes blood away from the heart
- 9. blood vessel connected to left ventricle
- 11. chiefly responsible for clotting
- 13. waste product carried in blood, excreted via lungs
- 14. proteins involved in clotting
- 16. waste product carried in blood, excreted via kidneys
- 17. carries blood to the heart
- 20. blood vessel connected to left atrium
- 21. holds platelets together in a mesh
Down
- 1. blood vessel connected to right ventricle
- 2. valves prevent this
- 3. white blood cell that gives long lasting immunity
- 5. hormone that increase heart rate
- 7. blood vessel connected to right atrium
- 10. protein on the surface of a pathogen
- 11. the liquid component of blood
- 12. protein created by lymphocytes that kills pathogens
- 15. related to kidneys
- 18. related to liver
- 19. related to the heart