Circulatory and Respiratory Vocab

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Across
  1. 3. the main organs of the respiratory system
  2. 7. supplied blood to all the cells of the heart
  3. 10. microscopic sacs at the end of bronchioles
  4. 11. a vessel that brings blood back to the heart
  5. 13. a triangle-shaped area where air passes from the pharynx
  6. 14. a tube that is held open by C-shaped rings of cartilage
  7. 16. buildup of fatty material within the walls of arteries
Down
  1. 1. the network of vessels that carry blood from the heart to the body and back
  2. 2. carries blood to between the heart and lungs
  3. 4. tiny blood vessels that deliver supplies to individual cells and take away waste materials
  4. 5. a tubelike passageway at the top of the throat that receives air, food, and liquids from the mouth or nose
  5. 6. the narrower tubes that the trachea branches into
  6. 8. the large muscle below the lungs
  7. 9. the movement of air into and out of the lungs
  8. 10. the upper two chambers of the heart
  9. 12. a vessel that take blood away from the heart
  10. 15. the lower two chambers of the heart