Tonsils on the left and right sides at the back of the throat. one of the mucosa-associated lymphoid tissues (MALT), located at the entrance to the upper respiratory and gastrointestinal tracts to protect the body from the entry of exogenous material through mucosal sites[WP].
Comment:
[development-note] "tonsillar fossa develops from dorsal portion of pouch 2. Note that pharyngeal and lingual tonsils do not develop from pharyngeal pouches" xsd:string {source="ISBN:1607950324"}