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From Embryology

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21 August 2012

  • curprev 23:1923:19, 21 August 2012Z8600021 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