Structures Involved in Respiration and Their functions

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Across
  1. 3. these cells secrete mucus
  2. 5. the entire respiratory tract is lined with this
  3. 8. this is made up of the Nasal cavity, pharynx, and larynx
  4. 11. – these are short small hairlike structures that line certain epithelia
  5. 13. the _ is where air travels before splitting into the bronchi
  6. 14. the _ are the smallest airways and branch out from the bronchi
  7. 16. when these muscles contract, the thoracic cavity volume decreases
  8. 18. these muscles are involved in respiration as they line the thoracic cavity
  9. 19. the epiglottis lays atop this tissue and separates it from the larynx
  10. 20. another name for these are the pharyngeal tonsils
Down
  1. 1. there are two primary _ in the respiratory tract that allow air to pass following the trachea
  2. 2. the _ ensures food does not enter the airway
  3. 4. this nerve is attached to the diaphragm
  4. 6. without the _ which holds the vocal cords, you could not speak
  5. 7. The contraction and relaxation of your _ controls thoracic cavity volume
  6. 9. these muscles are responsible for expanding the thoracic cavity by contracting
  7. 10. the _ are the site of gas exchange between the lungs and the blood
  8. 12. the _, the larynx and nasal cavity all make up the upper respiratory tract
  9. 15. these are the connecting piece between the bronchioles and the alveoli
  10. 17. the _ is the first port of entry for air entering the respiratory system other than the mouth