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Across
  1. 2. Shell-shaped structure
  2. 4. Produces insulin and digestive enzymes
  3. 5. Blood filter
  4. 7. Knee cartilage
  5. 8. Relating to bladder
  6. 10. Deep groove
  7. 15. Vocal cords gap
  8. 19. Comb-like
  9. 20. Largest artery in body
  10. 21. Nerve cell
  11. 22. Upper chamber of heart
  12. 23. Structure controlling blood flow direction
  13. 24. Kidney duct
  14. 25. Membrane lining abdominal cavity
Down
  1. 1. Kidney filter
  2. 3. Small pouch attached to large intestine
  3. 6. Fatty tissue covering intestines
  4. 9. Tiny hairs
  5. 11. Filters old blood cells
  6. 12. Relating to smell
  7. 13. Superior large vein returning blood to heart
  8. 14. Nasal bone
  9. 16. Ring muscle
  10. 17. Lower pumping chamber of heart
  11. 18. Base of spine