lymphoid nodules
lymphoid nodules
lymphoid nodules
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Two palatine tonsils are located in the lateral walls of the oral part of the<br />
pharynx. They lined with squamous strastified epithelium.<br />
The <strong>lymphoid</strong> tissue of these tonsils form a band that contains free<br />
lymphocytes and <strong>lymphoid</strong> <strong>nodules</strong> generally with germinative centers. Each<br />
tonsil has 10-20 epithelial invaginations that penetrate the tonsil deeply,<br />
forming crypt, whose lumens contain desquamated epithelial cells, live and<br />
dead lymphocytes, bacteria. Crypts may appear as purulent spots in<br />
tonsillitis.<br />
A band of dense connective tissue separating the <strong>lymphoid</strong> tissue from<br />
subjacent structures, this band called the capsule of the tonsil. This capsule<br />
usually acts as a barriers against spreading infections.<br />
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