Pharyngeal (endodermal) evaginations between the visceral arches from which the Eustachian tube is derived; pouches 2-4 open as gill slits. [ https://www.worldcat.org/search?q=bn%3A0226557634 ]
This is just here as a test because I lose it
Term information
Term relations
Subclass of:
- unilaminar epithelium
- pharyngeal pouch
- embryonic structure
- gut epithelium
- develops from some foregut
- part of some pharyngeal region