Tonsil: (1) Intramucosal collection of lymphocytes or aggregated lymphoid tissue closely associated with the overlying epithelium, including the pharyngeal tonsil (adenoid), palatine tonsil, and lingual tonsil, that collectively form a lymphoepithelial ring in the pharynx.pharyngeal lymphatic ring (2) SYN: palatine tonsil. (3) An anatomic structure resembling the palatine tonsil in form. [L. tonsilla, a stake, in pl. the tonsils]
Source: Stedman's Medical Spellchecker, © 2006 Lippincott Williams & Wilkins. All rights reserved.
Tonsil: One of two small masses of lymphoid tissue on either side of the throat.
Source: National Institute of Health
Tonsil: either of two masses of lymphatic tissue one on each side of the oral pharynx.
Source: WordNet 2.1
Tonsil: A round-to-oval mass of lymphoid tissue embedded in the lateral wall of the PHARYNX situated on each side of the fauces, between the anterior and posterior pillars of the soft palate (PALATE, SOFT).
Source: MESH OBO (Open Biomedical Ontologies)
Tonsil: A round-to-oval mass of lymphoid tissue embedded in the lateral wall of the PHARYNX situated on each side of the fauces, between the anterior and posterior pillars of the soft palate (PALATE, SOFT).
Source: MeSH 2007
Tonsil (organ): Another name for Tonsils.
Tonsil (organ): The tonsils are structures of the immune system located in the pharynx and throat. The tonsils protect the body from potential infection of invading pathogens into the respiratory system and the digestive system. They possibly play a role in fighting pharyngeal infections and upper respiratory infections.
The tonsils are made up of lymphatic tissue and contain lymphocytes. Some types of tonsils contain tonsillar crypts. Tonsils include several different structures: the adenoids, tubal tonsils, lingual tonsils, and palatine tonsils. Conditions that can afflict the tonsils include tonsillitis, tonsil hypertrophy, tonsilloliths, and pharyngeal cancer.
More information on organs: Tonsils:
Source - WordNet 2.1
Source - MeSH OBO (Open Biomedical Ontologies)
Source - MeSH 2007
Source - MeSH 2007
Source - MeSH 2007
Source - WordNet 2.1
Source: CRISP
The following list attempts to classify Tonsil into categories where each line is subset of the next.
Source: WordNet 2.1
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