HUMAN BODY

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Across
  1. 2. the brain is protected by bones called
  2. 5. pain what do you mean by angine
  3. 7. the outer part of ear
  4. 8. in humans the process digestion begins in the
  5. 9. what human organ is mainly affected by the cholera bacteria
  6. 10. on which side of the body does the appendix lie
  7. 13. what is the membrane the heart in enveloped
  8. 15. acid building block of proteins
  9. 18. what do you call the major blood vessel that carries blood away from the heart
  10. 20. the largest part of the brain is the
Down
  1. 1. membrane a thin layer covering the outside of cells
  2. 3. what is the tough substance the finger and toe nails are made of
  3. 4. which was the first ever antibiotic produced
  4. 6. what cells organelle produce proteins
  5. 11. what zodiac sign depicts twins
  6. 12. type of muscle found in heart
  7. 14. muscle located under lungs
  8. 16. bean shaped urinary system organ
  9. 17. the part of the body mandible
  10. 19. connects a muscle to a bone