Biology Review 2

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Across
  1. 6. makes three different enzymes
  2. 7. the fingerlike parts on the lining of the small intestine
  3. 8. a small, baglike part located under the liver
  4. 12. a long, hollow, tubelike oran (most of chemical digestion of food take place here)
  5. 13. the largest organ in the body
  6. 14. the valves between the ventricles and their arteries
  7. 15. a blood vessel that carries blood away from the heart
  8. 16. the valve between the left atrium and the left ventricle
  9. 17. a thick, sticky material that protects the stomach and intestinal linings from from enzymes and stomach acid
  10. 18. a blood vessel that carry blood back to the heart
  11. 19. Food gets out of the small intestine and into the blood mainly by ______
Down
  1. 1. a chemical often called stomach acid
  2. 2. ______ system is your body's pickup and delivery system
  3. 3. the large, bottom chambers of the heart
  4. 4. ______ are flaps in the heart that keep blood flowing in one direction
  5. 5. a tubelike organ at the end of the digestive track
  6. 9. a small fingerlike part found where the small and large intestine meet
  7. 10. the small, top chambers of the heart
  8. 11. the valve between the right atrium and right ventricle
  9. 16. a green liquid that breaks large fat droplets into small fat droplets