Across
- 1. Cell fragment involved in clotting
- 3. Coordinated movement of the heart muscle
- 5. Straw colored liquid that is the major component of blood
- 7. Valve between left atrium and ventricle
- 9. Valve between the left atrium and the aorta
- 11. Protein responsible for transport of oxygen
- 12. Vessels that carry blood to the heart
- 13. Protein that binds with platelets to form a clot
- 14. Valve between right atrium and ventricle
- 16. Type of blood cell that is part of the immune system
- 17. Number of chambers in the human heart
- 18. Lower chambers of the heart
- 19. Type of blood cell that carries oxygen
Down
- 2. Upper chambers of the heart
- 4. Vessels that carry blood away from the heart
- 5. Only artery that carries deoxygenated blood
- 6. Node responsible for ventricle contraction
- 8. Tiny vessels where gas exchange takes place
- 10. Largest artery in the body
- 15. Node responsible for contraction of atria Node responsible for atria contraction