Embryonic
3-7 Weeks PC Human
E9.5-12 Mouse
The Embryonic stage of lung development occurs from 4-7 weeks PC in human and embryonic (E) day 9.5-E12 in mouse (Ref). During the embryonic period, trachea, main stem, lobar and segmental bronchi are formed and the trachea and esophagus separate.Â
