Cardiovascular System

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Across
  1. 1. white blood cells
  2. 3. disk shaped
  3. 6. the large, Middle part of the heart muscle
  4. 10. a blood vessel that carries oxygen-rich blood from the lungs back to the heart
  5. 12. a double-layered sac that surrounds the heart and its root
  6. 14. the smallest blood vessel in the body
  7. 15. a chamber in the heart that receives blood from the body or lungs and pumps it into ventricle
Down
  1. 2. the innermost layer of the heart
  2. 4. transport blood under very high pressure
  3. 5. the largest blood vessel in the body
  4. 7. a muscular chamber that pumps blood out of the heart and into the circulatory system
  5. 8. help to clot blood
  6. 9. a major blood vessel that carries deoxygenated blood from the hearts right ventricle to the lungs for oxygenation
  7. 11. a large vein that carries blood to the heart from other areas of the body
  8. 13. carry deoxygenated blood away from capillaries to the heart