Ethan's super duper fun cross word

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Across
  1. 2. deliver oxygen to the body; part of the respiratory system
  2. 6. Digestion, uptake of sugar; part of the digestive system
  3. 8. catches prey starts with V
  4. 10. Organ near the stomach that produces, stores, and eliminates blood cells
  5. 11. Stores urine; part of the excretory system
  6. 13. First site of chemical digestion; part of the digestive system
  7. 14. Filters blood, makes urine; part of the excretory system
  8. 15. Stores solid waste, eggs, sperm; part of the excretory system, reproductive system, and the digestive system
  9. 17. Hearing (hint it starts with Tympanum)
  10. 18. the first part of the small intestine immediately beyond the stomach, leading to the jejunum; part of the digestive system
  11. 19. thin membrane that holds the coils of the small intestine
  12. 20. Blood vessels that carry blood away from the heart; part of the circulatory system
Down
  1. 1. moves digested food out of the body; part of the digestive system
  2. 3. Transparent cover that protects the eye
  3. 4. All waste is collected; part of the digestive system
  4. 5. air opening to exchange gases
  5. 7. The first part of the small intestine immediately beyond the stomach, leading to the jejunum; part of the digestive system
  6. 9. Stores bile; part of the digestive system
  7. 12. Carries eggs in female frogs; part of the reproductive system
  8. 16. catches prey starts with M