| 21. | It became lodged in his esophagus and blocked his trachea.
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| 22. | Surfactants used in this manner are typically instilled directly into the trachea.
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| 23. | Fauza and Atala are also growing diaphragm and trachea tissues from fetal lambs.
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| 24. | Eight hours of surgery repaired a torn trachea tube and saved his life.
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| 25. | The slaps can push the object farther down and perhaps obstruct the trachea.
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| 26. | On Monday, doctors closed the small opening in Havel's trachea.
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| 27. | These are present in the midline of the neck anterior to the trachea.
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| 28. | The respiratory tract begins with the trachea and bronchi.
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| 29. | The trachea develops in the second month of development.
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| 30. | The trachea, however, is short, with only four cartilaginous rings.
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