Human Body Crossword

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Across
  1. 2. vocal cords
  2. 3. "sub-branches" in the lungs that take oxygen to alveoli
  3. 4. "branches" in the lungs that take oxygen to bronchioles
  4. 6. tiny veins that bring oxygenated blood to cells, and take away blood with waste
  5. 8. term for the diffusion of water
  6. 10. valve that regulates the flow of substances in the digestive system
  7. 12. artery that takes blood from the heart to be oxygenated in the lungs
Down
  1. 1. when a substance is diffused out of an area and into another
  2. 5. warms, moistens, and fliters air before going to the pharynx
  3. 7. artery that sends blood from the heart to the rest of the body
  4. 9. part of the small intestine that recieves lots of chemicals to help break down food
  5. 11. valve between the left atrium and left ventricle
  6. 13. tiny inflatable balls in the lungs that diffuse oxygen to blood, and take away CO2 and water
  7. 14. windpipe