| 释义 |
DictionarySeelunglung bud
lung bud[′ləŋ ‚bəd] (embryology) A primary outgrowth of the embryonic trachea; the anlage of a primary bronchus and all its branches. lung bud
tracheal budthe outgrowth from the caudal end of the floor of the respiratory diverticulum. Synonym(s): lung bud, primary lung budres·pi·ra·to·ry di·ver·tic·u·lum (res'pir-ă-tōr-ē dī'vĕr-tik'yū-lŭm) Primordial pharynx that gives rise to the epithelial lining of the respiratory tract on glands of the bronchial tree.
Synonym(s): lung bud, tracheobronchial diverticulum. lung budIn the embryo, a pouch that grows out of each side of the developing foregut tube beginning at stage 12 (26 days). It pushes into the primitive pleural coeloms and continues to elongate and branch to become the embryonic lung. See also: budThesaurusSeebud |