Across
- 2. receives blood and pumps blood into the aorta to transport to body cells
- 7. name for platelets, fragments or pieces of cells that lack nuclei and vary in shape and size
- 9. closes when left ventricle contracts, allowing blood flow into aorta and not into left atrium
- 11. receives oxygenated blood from lungs
- 14. abnormal heartbeat rhythms
- 15. fluid blood is made of, 90% water with dissolved substances
- 17. that closes when right ventricle contracts, allowing blood flow into lungs and not flowing back into right atrium
- 20. double layered membrane covering outside of heart
- 22. blood vessels that carry blood back to the heart
- 23. name for red blood cells
- 24. smooth layer of cells lining inside of heart, continuous with blood vessels
Down
- 1. complex protein carrying both oxygen and carbon dioxide, gives blood its red color
- 3. tissue that contains many kinds of cells, circulates constantly throughout the body, responsible in a significant amount of bodily processes
- 4. transportation system of the body (heart, blood vessels, and blood)
- 5. largest artery in the body, closes when left ventricle finishes contracting, allowing blood flow in aorta and not the left ventricle
- 6. part of upper quadrant in heart that receives blood as it returns from body cells
- 8. period of ventricular contraction
- 10. closes when right ventricle is done contracting and prevents blood flow into right ventricle
- 12. connects arterioles with venules, also in close proximity to almost ever cell in the body to allow nutrient and gas exchange
- 13. thickest layer, middle muscular layer
- 16. muscular wall separates heart into left and right side
- 18. brief period of rest
- 19. name for white blood cells
- 21. lower chamber that receives blood and pumps into the pulmonary artery, carrying blood to lungs for oxygen