| __ | 1. | Arteries | | A. | Pass and receive materials into the bloodstream |
| __ | 2. | Atrium | | B. | Transports oxygen and carbon dioxide |
| __ | 3. | Capillaries | | C. | Directs the flow of blood in the heart and veins |
| __ | 4. | Plasma | | D. | Where blood enters the heart; sent to ventricles |
| __ | 5. | Platelets | | E. | Carry blood to the heart |
| __ | 6. | Red Blood Cells | | F. | Carry blood away from heart |
| __ | 7. | Valves | | G. | Repairs damaged blood vessels by forming clots (scabs) |
| __ | 8. | Veins | | H. | Lower chambers of heart; pumps blood to arteries |
| __ | 9. | Ventricles | | I. | Defends and protects the body by destroying pathogens |
| __ | 10. | White Blood Cells | | J. | The liquid part of blood; it transports larger materials |