Circulatory System Vocabulary Formative
| __ | 1. | Blood | | A. | Flaplike structures that prevent blood from flowing backward | | __ | 2. | Diffusion | | B. | The part of blood that attacks a virus, bacteria, or other | | __ | 3. | Heart | | C. | The process by which molecules pass through a membrane | | __ | 4. | Plasma | | D. | Made up of plasma, red blood cells, white blood cells, plate | | __ | 5. | Platelets | | E. | An organ made of cardiac muscle that pumps blood to the body | | __ | 6. | Red Blood Cells | | F. | The fluid part of blood | | __ | 7. | Valve | | G. | The part of blood that carries oxygen and carbon dioxide | | __ | 8. | White Blood Cells | | H. | The part of blood that clumps together to form clots |
| __ | 9. | Artery | | A. | A blood vessel that carries blood back to the heart | | __ | 10. | Atrium | | B. | The upper chamber of the heart | | __ | 11. | Capillary | | C. | The lower chamber of the heart | | __ | 12. | Vein | | D. | The part of blood that attacks a virus, bacteria, or other | | __ | 13. | Ventricle | | E. | Tiny blood vessels that allow the exchange of materials | | __ | 14. | White Blood Cells | | F. | A blood vessel that carries blood away from the heart |
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