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The lingual tonsils are a collection of lymphatic tissue located in the lamina propria of the root of the tongue. [1] This lymphatic tissue consists of the lymphatic nodules rich in cells of the immune system (immunocytes). [2] The immunocytes initiate the immune response when the lingual tonsils get in contact with invading microorganisms ...
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. When used unqualified, the term most ...
The palatine tonsils with the soft palate, uvula, and tongue visible. Palatine tonsils, commonly called the tonsils and occasionally called the faucial tonsils, [2] are tonsils located on the left and right sides at the back of the throat, which can often be seen as flesh-colored, pinkish lumps. Tonsils only present as "white lumps" if they are ...
Lingual papillae (sg.: papilla) are small structures on the upper surface of the tongue that give it its characteristic rough texture. The four types of papillae on the human tongue have different structures and are accordingly classified as circumvallate (or vallate), fungiform, filiform, and foliate. All except the filiform papillae are ...
1 pharyngeal tonsil (or "adenoid"), located on the roof of the nasopharynx, under the sphenoid bone. 2 tubal tonsils on each side, where each auditory tube opens into the nasopharynx; 2 palatine tonsils (commonly called "the tonsils") located in the oropharynx; lingual tonsils, a collection of lymphatic tissue located on the back part of the tongue
Fauces (throat) A view of the fauces through the mouth cavity. The cheeks have been slit transversely and the tongue pulled forward. (Fauces labelled as Isthmus faucium at center right.) The fauces, isthmus of fauces, or the oropharyngeal isthmus is the opening at the back of the mouth into the throat. [1] It is a narrow passage between the ...
Tonsillar crypts. Tonsillar crypts. Low-power microscope magnification of a cross-section through one of the tonsillar crypts (running diagonally) as it opens onto the surface of the throat (at the top). Stratified epithelium (e) covers the throat's surface and continues as a lining of the crypt. Beneath the surface are numerous nodules (f) of ...
Tonsillar branches of glossopharyngeal nerve. The tonsillar branches of glossopharyngeal nerve supply the palatine tonsil, forming around it a plexus from which filaments are distributed to the soft palate and fauces, where they communicate with the palatine nerves .