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- Tonsillar_crypts abstract "The human palatine tonsils (PT) are covered by stratified squamous epithelium that extends into deep and partly branched tonsillar crypts, of which there are about 10 to 30. The crypts greatly increase the contact surface between environmental influences and lymphoid tissue. In an average adult palatine tonsil the estimated epithelial surface area of the crypts is 295 cm2, in addition to the 45 cm2 of epithelium covering the oropharyngeal surface.[citation needed]The crypts extend through the full thickness of the tonsil reaching almost to its hemicapsule. In healthy tonsils the openings of the crypts are fissure-like, and the walls of the lumina are in apposition. A computerized three-dimensional reconstruction of the palatine tonsil crypt system showed that in the centre of the palatine tonsil are tightly packed ramified crypts that join with each other, while on the periphery there is a rather simple and sparse arrangement.[citation needed]The crypt system is not merely a group of invaginations of the tonsillar epithelium but a highly complicated network of canals with special types of epithelium and with various structures surrounding the canals, such as blood and lymphatic vessels and germinal centers.[citation needed]Macrophages and other white blood cells concentrate by the tonsillar crypts as well, in response to the microorganisms attracted to the crypts. Accordingly, the tonsillar crypts serve a forward sentry role for the immune system, by providing early exposure of immune system cells to infectious organisms which may be introduced into the body via food or other ingested matter.[citation needed]However, the tonsillar crypts often provide such an inviting environment to bacteria that bacterial colonies may form solidified "plugs" or "stones" within the crypts. In particular, sufferers of chronic sinusitis or post-nasal drip frequently suffer from these overgrowths of bacteria in the tonsillar crypts.[medical citation needed] These small whitish plugs, termed "tonsilloliths" and sometimes known as "tonsil stones," have a foul smell and can contribute to bad breath; furthermore, they can obstruct the normal flow of pus from the crypts, and may irritate the throat (people with tonsil stones may complain of the feeling that something is stuck in their throat).[citation needed]".
- Tonsillar_crypts thumbnail Gray1027.png?width=300.
- Tonsillar_crypts wikiPageID "29352439".
- Tonsillar_crypts wikiPageRevisionID "600891974".
- Tonsillar_crypts caption "Low-power microscope magnification of a cross-section through one of the tonsillar crypts as it opens onto the surface of the throat . Stratified epithelium covers the throat's surface and continues as a lining of the crypt. Beneath the surface are numerous nodules of lymphoid tissue. Many lymph cells pass from the nodules toward the surface and will eventually mix with the saliva as salivary corpuscles .".
- Tonsillar_crypts hasPhotoCollection Tonsillar_crypts.
- Tonsillar_crypts latin "cryptae tonsillares".
- Tonsillar_crypts name "Tonsillar crypts".
- Tonsillar_crypts subject Category:Lymphatics_of_the_head_and_neck.
- Tonsillar_crypts subject Category:Tonsil.
- Tonsillar_crypts type Abstraction100002137.
- Tonsillar_crypts type Anatomy106057539.
- Tonsillar_crypts type Biology106037666.
- Tonsillar_crypts type Cognition100023271.
- Tonsillar_crypts type Content105809192.
- Tonsillar_crypts type Discipline105996646.
- Tonsillar_crypts type KnowledgeDomain105999266.
- Tonsillar_crypts type LifeScience106037298.
- Tonsillar_crypts type Morphology106078327.
- Tonsillar_crypts type NaturalScience106000400.
- Tonsillar_crypts type PsychologicalFeature100023100.
- Tonsillar_crypts type Science105999797.
- Tonsillar_crypts type AnatomicalStructure.
- Tonsillar_crypts type BiologicalObject.
- Tonsillar_crypts comment "The human palatine tonsils (PT) are covered by stratified squamous epithelium that extends into deep and partly branched tonsillar crypts, of which there are about 10 to 30. The crypts greatly increase the contact surface between environmental influences and lymphoid tissue.".
- Tonsillar_crypts label "Tonsillar crypts".
- Tonsillar_crypts sameAs m.0dsb_rh.
- Tonsillar_crypts sameAs Q7821672.
- Tonsillar_crypts sameAs Q7821672.
- Tonsillar_crypts sameAs Tonsillar_crypts.
- Tonsillar_crypts wasDerivedFrom Tonsillar_crypts?oldid=600891974.
- Tonsillar_crypts depiction Gray1027.png.
- Tonsillar_crypts isPrimaryTopicOf Tonsillar_crypts.
- Tonsillar_crypts name "Tonsillar crypts".
