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From Embryology

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22 August 2012

  • curprev 00:1900:19, 22 August 2012‎ Z8600021 talk contribs‎ 3,509 bytes +3,509‎ ==Trachea Transverse section== ===Structure=== (Fig. 964) The trachea and extrapulmonary bronchi are composed of imperfect rings of hyaline cartilage, fibrous tissue, muscular fibers, mucous membrane, and glands. The cartilages of the trachea vary from