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Across
  1. 1. synovial Friction-reducing joint fluid
  2. 5. Small pouch in intestine
  3. 8. pregnancy Pregnancy outside uterus
  4. 12. Fertilized cell
  5. 13. Brainstem vital center
  6. 15. Body chemical messenger
  7. 17. Relating to kidneys
  8. 18. Urine-carrying tube
  9. 20. Thread tying vessels
  10. 22. Small rounded lump
  11. 24. Tendon fluid swelling
  12. 25. Main epidermis cell
Down
  1. 2. Tissue death from low oxygen
  2. 3. Tonsillitis abscess
  3. 4. fever Mosquito-borne viral disease
  4. 6. First part of small intestine
  5. 7. Vessel blockage
  6. 9. Eye covering membrane
  7. 10. Thigh bone
  8. 11. Sharp surgical tool
  9. 14. Red cell breakdown pigment
  10. 16. Severe dry eye
  11. 19. Benign skin cyst
  12. 21. Immune system gland
  13. 23. Insulin and enzyme organ