Transport: Respiratory, Circulatory and Lymphatic Systems

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Across
  1. 2. a flap of tissue that keeps blood moving in the right direction through the heart
  2. 5. one of the two main branches that carry air from the trachea into the lungs
  3. 8. a lower chamber of the heart that pumps blood out
  4. 10. the liquid part of blood that carries blood cells and dissolved materials
  5. 11. a tiny air sac in the lungs where oxygen and carbon dioxide are exchanged
Down
  1. 1. the molecule in red blood cells that carries oxygen
  2. 3. This clear fluid is leaked plasma that helps fight infection and carries materials through the lymphatic system
  3. 4. a small structure that filters lymph and helps the body fight germs
  4. 6. gas needed for cellular respiration
  5. 7. an upper chamber of the heart that receives blood
  6. 9. the windpipe; the tube that carries air to and from the lungs
  7. 12. this organ in the lymphatic system, recycles old red blood cells