primary bronchial buds

tra·che·o·bron·chi·al di·ver·tic·u·lum

the endodermal lung primordium that will give rise to the epithelial lining of the respiratory tract. Synonym(s): primary bronchial buds

pri·mar·y bron·chi·al buds

(prī'mar-ē brong'kē-ăl bŭdz) The first bronchial buds resulting from bifurcation of the tracheal bud; they give rise to the main bronchi.