Browser Not Supported.

IE users: please get the latest browser version at Microsoft Internet Explorer Home Page

if yot already have the latest browser version please verify that your browser settings is not in compatibility mode

Browser: unknown
Version: 0


Welcome to
LifeMap Discovery

Watch the introductory video to learn more about our database of embryonic development for stem cell research and regenerative medicine

All Anatomical Compartments > Compartment Card
Lung >

Stem Bronchi

Primary lung buds elongate into the secondary, or stem bronchi, their numbers presage the formation of the 3 lobes of the right lung and the 2 lobes of the left lung in humans or 4 lobes on right and 1 on left in mouse.

humans: 5th week; mice: ~E10.5
Secondary Bronchi
Stem Bronchi
Multiple Ancestors Single Ancestor No Descendants Develops from Part of Parent