Body system crossword

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Across
  1. 2. main part of your back
  2. 3. soft, wrinkled organ
  3. 6. second part of the rib cage
  4. 7. much thinner and more delicate than the dura mater
  5. 10. connecting to the breastbone and shoulder
  6. 15. found only in the heart
  7. 16. the only voluntary muscle tissue in the body
  8. 18. one of the two found in the abdominal region
  9. 19. thickest, toughest, and most superficial layer of meninges
  10. 20. muscular pumping organ
Down
  1. 1. thin and delicate layer of tissue that rests on the outside of the brain and spinal cord
  2. 4. The top of the heart, known as the heart’s base, connects to the great blood vessels of the body
  3. 5. lined with a thin layer of simple squamous epithelium
  4. 8. second one found in the abdominal region
  5. 9. long, thin mass of bundled neurons that carries information
  6. 11. pair of large, spongy organs optimized for gas exchange between our blood and the air.
  7. 12. moves the eye up and down
  8. 13. one part of the rib cage
  9. 14. help move blood threw the body
  10. 17. protects the brain