Preferred Label : dorsal part of pharyngeal pouch 2;
Uberon synonym : dorsal 2nd branchial pouch; dorsal pharyngeal pouch 2;
Uberon related term : dorsal elongation of second pouch endoderm; dorsal pharyngeal pouch 2 endoderm; dorsal branchial pouch 2 endoderm;
Uberon Development note : in humans, persists as the tonsillar fossa - the endodermal lining covers the mesodermal
lymphatic tissue to form the palatine tonsil[ISBN:1607950324]. the dorsal elongation
of the second pouch endoderm of all mammals, with the exception of rodents, gives
rise to the epithelial lining of palatine tonsils; in rodents, the ventral portion
of the second pouch appears to degenerate whereas the remaining part is incorporated
into the lateral border of the pharynx; it appears that rodents no longer require
tonsils as their function is carried out by the NALT (Nose/Nasal-Associated Lymphoid
Tissue) system in the upper respiratory tract;
Origin ID : 0010023;
develops into
- part of
