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Medical Term:

respiratory diverticulum


Definition: the endodermal diverticulum from the floor of the caudal end of the primordial pharynx; it gives rise to the epithelium and glands of the bronchial tree. After this diverticulum separates from the foregut, it is referred to as a tube.

Synonym(s): laryngotracheal diverticulum, respiratory primordium