Across
- 4. injection of dead or weakened pathogen
- 6. carry blood away from the heart
- 10. this will raise the heart rate up!
- 14. if this vessel gets blocked, prepare for an attack!
- 17. type of circulatory system in humans
- 18. tiny blood vessels that allow exchange (diffusion) between blood and tissues
- 19. blood coming out of the aorta is
- 20. help in blood clotting
- 21. prevents flow of blood back to the heart as the blood is entering the arteries
- 22. watery component of blood, liquid that carries all cells and dissolved substances
- 23. receiving chamber of blood in the heart from the rest of the body
- 24. lower chambers of the heart
- 25. structure that allows one-way flow of the blood
- 28. supplies blood from the right side of heart to the lungs
- 29. type of WBC that engulfs pathogens
Down
- 1. valve between the chambers on the left side of the heart
- 2. manufactures blood cells
- 3. brings blood rich in oxygen from lungs to left atrium
- 5. most powerful chamber of the heart
- 7. sequence of events in one complete beat of the heart
- 8. type of nucleus a phagocyte has to fit through small spaces
- 9. name of the valves between the atria and ventricles
- 11. blood vessel that returns blood to the heart from the rest of the body
- 12. disc shape of a red blood cell, large surface area
- 13. pigment that carries oxygen
- 15. blood coming into the heart from the vena cava is
- 16. trace that shows electrical activity of the heart
- 26. main artery of the body
- 27. the number of chambers in the heart