laryngotracheal tube

laryngotracheal tube
the embryonic endodermal tube that is split off from the primordium of the oropharynx and esophagus when the tracheoesophageal septum divides the cranial part of the foregut; it constitutes the primordium of the larynx, trachea, bronchi, and lungs.

Medical dictionary. 2011.

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