Circulatory and Respiratory System

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Across
  1. 3. main organs of the respiratory system
  2. 4. large muscle below the lungs that contracts and relaxes to move air in and out of the lungs.
  3. 6. – muscular organ that pumps blood throughout the body
  4. 8. - group of organs that work together to pump blood throughout the body and remove wastes
  5. 9. the movement of air into and out of the lungs
  6. 10. - a vessel that brings blood toward the heart
  7. 11. - tiny blood vessels that deliver blood supplies to individual cells and take away waste materials
Down
  1. 1. – channels that carry blood throughout the body
  2. 2. - a vessel that takes blood away from the heart
  3. 5. tubelike passageway at the top of the throat that receives air, food, and liquids from the mouth or nose.
  4. 7. tube that is held open by c-shaped rings of cartilage where air enters
  5. 9. the two narrow tubes from the trachea that lead into the lungs
  6. 12. microscopic pouches or sacs in the bronchioles where gas exchange occurs
  7. 13. triangle shaped area (voicebox) in which air passes from the pharynx into