Anatomy of the tonsils and adenoids
{"Image DocumentName": "Anatomy Tonsils Adenoids Plica triangularis Gerlach\u2019s tonsil", "Image ImageDescription": "Fossa of Rosenm\u00fcller. Passavant\u2019s ridge. The tonsil is nestled in a fossa formed by the muscular anterior and posterior tonsillar pillars (palatoglossus and palatopharyngeus) and lying superficial to the superior constrictor muscle; preservation of these muscular condensations and the overlying mucosa is critical to maintaining physiologic function of the palate postoperatively. The tonsil is contiguous inferiorly with the lingual tonsil. The point of attachment (plica triangularis) must be transected during tonsillectomy. In pts with marked hypertrophy, this extension is freq quite large and can result in troublesome bleeding at the pt of transection at the base of the tongue. The adenoid is positioned in the midline of the posterior wall of the NP immediately inferior to the rostrum of the sphenoid and extending laterally to but not onto the lateral wall of the NP. It makes up the most rostral portion of the pharyngeal lymphoid tissue termed Waldeyer\u2019s ring. The space created lateral to the adenoid and posteromedial to the ET orifice is termed the FOSSA of Rosenmuller. Gerlach\u2019s tonsil is lymphoid tissue within lip of the fossa of Rosenmuller; goes into ET. Inferiorly, the adenoid extends nearly to the superior margin of the superior constrictor\u2026Passavant\u2019s ridge. 4/16/2017.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}