Tonsillar fossa

Tonsillar fossa
The mouth cavity. (Tonsillar fossa, which is a part of the oropharynx, visible but not labeled.)
Details
Identifiers
Latin	fossa tonsillaris
Dorlands /Elsevier	f_14/12376803
TA	A05.2.01.009
FMA	55041
Anatomical terminology []

The tonsillar fossa (or tonsillar sinus) is a space delineated by the triangular fold (plica triangularis) of the palatoglossal and palatopharyngeal arches within the lateral wall of the oral cavity. In this space lie the palatine tonsils .

In many cases, however, this sinus is obliterated by its walls becoming adherent to the palatine tonsils.

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)