Cardiovascular system

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Across
  1. 1. white blood cell
  2. 6. makes up the thick middle layer of the heart
  3. 10. A large vein that carries blood to the heart
  4. 11. receives blood from an atrium and from which blood is forced into the arteries
  5. 12. lood away from heart
  6. 14. carrying blood from the right ventricle of the heart to the lungs for oxygenation
Down
  1. 2. red blood cell
  2. 3. a thin, smooth tissue that makes up the lining of the chambers and valves of the heart
  3. 4. The smallest type of blood vessel
  4. 5. transfers freshly oxygenated blood from the lungs to the left atria of the heart
  5. 7. a fibrous sac that encloses the heart and great vessels
  6. 8. Platelets, clot blood
  7. 9. the largest blood vessel in the body
  8. 10. A blood vessel that carries blood to the heart from tissues and organs in the body
  9. 13. A blood vessel that carries blood from the heart to tissues and organs in the body