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Summary Information: Tonsils. Tonsils: 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.
Tonsils are collections of lymphoid tissue facing into the aerodigestive tract. The set of lymphatic tissue known as Waldeyer's tonsillar ring includes the adenoid tonsil, two tubal tonsils, two palatine tonsils, and the lingual tonsil. When used unqualified, the term most commonly refers specifically to the palatine tonsils, which are masses of lymphatic material situated at either side of the back of the human throat. The palatine tonsils and the nasopharyngeal tonsil are lymphoepithelial tiss