The Human Body

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Across
  1. 1. windpipe
  2. 3. throat
  3. 4. the valve that is in between the right atrium and right ventricle
  4. 5. rhythmic movements of parts of the digestive system that allow food to be pushed down
  5. 6. glands that secrete saliva into the oral cavity
  6. 9. takes oxygen-poor blood to the lungs
  7. 11. artery that takes oxygen rich blood to the whole body
  8. 12. movement of water from an area of high concentration to an area of low concentration
  9. 13. structures that make the exchange of CO2 and O2 in the lungs into the capillaries
Down
  1. 2. an environment where there is more concentration of water inside the cell than the outside
  2. 7. the substance that is needed, along with O2, to make energy
  3. 8. section of the small intestine which receives chemicals
  4. 10. section of the heart that receives oxygen-poor blood
  5. 14. structures in the small intestine that increase surface area and diffuse nutrients into the blood stream