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The adenoid is a mass of lymphoid tissue located behind the nasal cavity, in the roof and the posterior wall of the nasopharynx, [1] where the nose blends into the throat. The adenoid, unlike the palatine tonsils , has pseudostratified epithelium . [ 3 ]
When used unqualified, the term most commonly refers specifically to the palatine tonsils, which are two lymphoid organs situated at either side of the back of the human throat. The palatine tonsils and the adenoid tonsil are organs consisting of lymphoepithelial tissue located near the oropharynx and nasopharynx (parts of the throat).
The adenoid is situated toward the rear of the nasal cavity and up behind the soft palate, in contrast to the tonsils, which are visible when one looks straight through the mouth. Similar to tonsilar tissue, the adenoid can be affected by both acute and long-term infections. A persistent infection or inflammation may cause the adenoid to ...
The pulp is a soft tissue area containing the nerve and blood vessels to nourish and protect the tooth, located within the pulp cavity. A tooth sits in a specialized socket called the alveolus. The tooth is held in location by a periodontal ligament, with the assistance of cementum.
The adenoids, also known as the pharyngeal tonsils, are lymphoid tissue structures located in the posterior wall of the nasopharynx. Waldeyer's tonsillar ring is an annular arrangement of lymphoid tissue in both the nasopharynx and oropharynx.
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).
[5] [1] While they most commonly occur in the palatine tonsils, they may also occur in the adenoids, lingual tonsils and tubal tonsil. [3] [6] [7] Tonsil stones have been recorded weighing from 0.3 g to 42 g, [3] and they are typically small in size. However, there are occasional reports of large tonsilloliths.
The soft palate (also known as the velum, palatal velum, or muscular palate) is, in mammals, the soft tissue constituting the back of the roof of the mouth.The soft palate is part of the palate of the mouth; the other part is the hard palate.