The lingual tonsils are a collection of lymphoid tissue located in the lamina propria of the root of the tongue. This lymphoid tissue consists of the nodules rich in cells of the immune system (immunocytes). The immunocytes initiate the immune response when the lingual tonsils get in contact with invading microorganisms (pathogenic bacteria, viruses or parasites).
Structure
Microanatomy
Lingual tonsils are covered externally by stratified squamous epithelium (nonkeratinized) that invaginates inward forming tonsillar crypts. Beneath the epithelium is a layer of lymphoid nodules containing lymphocytes. Mucous glands located at the root of the tongue are drained through several ducts into the crypts of the lingual tonsils.
Sleep apnea
Enlarged or hypertrophic lingual tonsils have the potential to cause or exacerbate sleep apnea.
Additional images
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File:Slide1sss.JPG|Lingual tonsil
File:Slide7ttt.JPG|Lingual tonsil
File:Slide12uuu.JPG| Lingual tonsils
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References
External links
- Pictures at usc.edu
- (labeled as 'lymphoid tissue')]
- Lingual Tonsil