Anatomy: Respiration Unit

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Across
  1. 3. descends from behind the ear at the mastoid process, divides and inserts into clavicle and sternum
  2. 7. a layer of tightly cells with no intercellular material
  3. 10. superior part of sternum
  4. 15. aid in both expiration and inspiration depending on their location
  5. 17. the only muscle you NEED to breathe
  6. 19. topmost cervical vertebrae that supports the skull
  7. 21. type of tissue that secretes surfactant in lungs
  8. 22. a cut into superior/inferior portions
Down
  1. 1. where gas exchange occurs
  2. 2. muscle fiber connecting bone to bone
  3. 4. a group of muscles that do opposite things
  4. 5. heart cavity
  5. 6. lining that allows for smooth contact between lungs and ribs
  6. 8. exchange of gas between an organism and the environment
  7. 9. when contracted, serves as a wall to keep abdominal viscera from pushing out posteriorly
  8. 11. tiny sacs deep within lungs
  9. 12. provides support for lower extremities
  10. 13. mucous solution between pariental and visceral linings
  11. 14. saw-like
  12. 16. type of vertebrae that provides direct attachment for abdominal and back muscles
  13. 18. cavity behind nasal and oral openings
  14. 20. long collapsed tube posterior and adjacent to trachea