the body

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Across
  1. 4. surround the arteries
  2. 6. a pair of elastic bands
  3. 9. deliver oxygen to the cells of the body
  4. 10. when a blood vessel in the brain is blocked
  5. 11. create blood pressure
  6. 13. a collection of organs that transport blood throught the body.
  7. 14. a blood vessel that carries away from the heart
  8. 15. abnormally high blod pressure
Down
  1. 1. the flow of blood from the heart to the lungs
  2. 2. can mean the same a respiration
  3. 3. part of the heart that prevent blood from going backwards
  4. 5. oxygen used by cells releasing stored energy
  5. 7. tiny air sacs
  6. 8. a dome-shaped muscle
  7. 12. the main passage way into and out of the respiratory system