The Circulatory System

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Across
  1. 3. The red blood cells carry this gas to every cell in the body.
  2. 5. The smallest blood vessel.
  3. 6. The biggest and longest artery in the body. It carries oxygenated blood from the left ventricle of the heart to the body.
  4. 9. dioxide The red blood cells take this waste gas away from the cells.
  5. 11. The valve between the left atrium and the left ventricle.
  6. 14. The ted blood cells drop off carbon dioxide and pick up oxygen in this organ.
  7. 16. The lower chamber on the left side of the heart.
  8. 17. A large vein that carries deoxygenated blood to the right atrium from the lower half of the body.
  9. 18. The blood vessel that carries blood from the body to the heart.
  10. 20. In order to stay alive, cells need food,water,gas exchange and waste______.
  11. 21. The basic unit of life
  12. 22. The valve between the right ventricle and the pulmonary artery.
  13. 23. A blood vessel that carries blood from the heart to the body.
  14. 24. There are three kinds of blood_________s: artery, vein and capillary.
  15. 25. The muscular wall that separates the left and right sides of the heart.
Down
  1. 1. A large vein that carries deoxygenated blood to the right atrium from the upper parts of the body.
  2. 2. A muscular organ that pumps blood.
  3. 4. The blood vessel that carries oxygenated blood from the lungs to the left atrium of the heart.
  4. 7. The valve between the right atrium ad the right ventricle.
  5. 8. The blood vessel that carries deoxygenated blood from the right ventricle of the heart to the lungs.
  6. 10. The upper chamber on the right side of the heart.
  7. 12. The right lower chamber of the heart.
  8. 13. The system of blood vessels and the heart. This system circulates blood to every cell in the body.
  9. 15. The left upper chamber of the heart.
  10. 19. The valve between the left ventricle and the aorta.