Cardiovascular and Respiratory System

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Across
  1. 1. smallest blood vessels where materials are exchanged between blood and tissue cells
  2. 5. the volume of air that moves in and out of the lungs with each respiratory cycle
  3. 7. the bottom two chambers of the heart
  4. 8. prevents the backflow of blood
  5. 9. blood is transported in this vessel to the rest of the body
  6. 10. this circulation transports oxygenated blood from heart to the rest of the body
Down
  1. 2. small air-filled sacs in the lungs where gaseous exchange takes place
  2. 3. this circulation transports deoxygenated blood from the heart to the lungs
  3. 4. muscles that contract and flatten during inspiration and expiration
  4. 6. the two top chambers of the heart