Circulatory System

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Across
  1. 3. small artery branches that are only one cell thick
  2. 6. help blood clot
  3. 8. main organ of the circulatory system
  4. 9. gets blood from the right atrium
  5. 11. thick powerful muscle that pumps blood through the aorta
  6. 13. receives blood from the lungs
  7. 14. blood travels away from the heart through these
Down
  1. 1. carry blood to the heart
  2. 2. the push of blood against the walls of the blood vessels
  3. 4. liquid part of blood
  4. 5. receives blood from the rest of the body
  5. 7. protect the body from infection
  6. 10. gives blood its bright red color
  7. 12. number of chambers in the heart