Respiratory and Skeletal Systems: Heidtman, P3 A&P

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Across
  1. 3. Both air and food go through here
  2. 4. What keeps the trachea open
  3. 5. Makes blood cells and is in spongy bone
  4. 8. Contains blood vessels, lymphatic vessels, and nerve fibers
  5. 10. The shaft of a long bone
  6. 11. To breath
  7. 12. Muscles between the ribs
  8. 14. What is contained in the medullary cavity
  9. 16. The production of blood cells
  10. 18. The ends of a long bone
  11. 19. Distinct units in compact bone
  12. 21. Tiny chambers that contain cells
Down
  1. 1. Gas required for ATP production
  2. 2. Occurs between capillaries and alveoli
  3. 6. Hair-like structures that allow bone cells to communicate
  4. 7. Parachute shaped muscular membrane at the bottom of the thoracic cavity
  5. 9. Calcium and this mineral are stored in bones
  6. 13. The voice box
  7. 15. Fibrous connective tissue covering long bones
  8. 17. Bone cell
  9. 20. Only external part of the respiratory system