You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Adenoids are also called as and explain in detail?
The nasopharyngeal tonsil, commonly called "adenoids". Adenoids are situated at the junction of the roof and posterior wall of the nasopharynx. Composed of veical ridges of lymphoid tissues. Covering epithelium is of 3 types - Ciliated pseudostratified columnar, stratified squamous and transitional. Have no crypts and any capsule, unlike palatine tonsil. (Ref: Diseases of Ear, Nose and Throat, PL Dhingra; 7th edition, pg no. 275)