The trachea develops from the primitive oesophagus within the floor of the pharynx. In the ventrolateral wall of the oesophagus, a distinct laryngotracheal groove develops. The internal edges of this groove move towards the midline and eventually fuse. This delineates the original tube into ventral trachea and caudal oesophagus.
Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.