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The tonsils are a set of lymphoid organs facing into the aerodigestive tract, which is known as Waldeyer's tonsillar ring and consists of the adenoid tonsil (or pharyngeal tonsil), two tubal tonsils, two palatine tonsils, and the lingual tonsils. These organs play an important role in the immune system.
The palatine tonsils are located in the isthmus of the fauces, between the palatoglossal arch and the palatopharyngeal arch of the soft palate.. The palatine tonsil is one of the mucosa-associated lymphoid tissues (MALT), located at the entrance to the upper respiratory and gastrointestinal tracts to protect the body from the entry of exogenous material through mucosal sites.
•Negus tonsil artery forceps: as a haemostat, replaces tonsil artery forceps; used to tie ligature at a depth and ligature won't slip due to its curve tip. •Peritonsilar abscess forceps: to drain abscesses in the soft tissue adjacent to the palatine tonsils •Denis Brown's tonsil holding forceps: to hold the tonsil during dissection
The tubal tonsil may also be known as the Gerlach tonsil. [3] It is very close to the torus tubarius, [4] which is why this tonsil is sometimes also called the tonsil of (the) torus tubarius. [5] Equating the torus with its tonsil however might be seen as incorrect or imprecise.
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 ...
Waldeyer's tonsillar ring (pharyngeal lymphoid ring, Waldeyer's lymphatic ring, or tonsillar ring) is a ringed arrangement of lymphoid organs in the pharynx.Waldeyer's ring surrounds the naso-and oropharynx, with some of its tonsillar tissue located above and some below the soft palate (and to the back of the mouth cavity).
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.
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; ... Pages in category "Tonsil" The following 10 pages are in this category ...