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Adenoid
Adenoids are a mass of lymphoid tissue situated at the very back of the nose (the nasopharynx). These folds of lymphatic tissue are much like a mat of tiny lymph nodes. Adenoids are studded in the roof of a passage called the nasopharynx (where the nose blends into the mouth). Adenoids are sometimes called the nasopharyngeal tonsils. Normally, in children, they make a soft mound in the roof and posterior wall of the nasopharynx, just above and behind the uvula. Adenoids are part of the immune system. Like all lymphoid tissue, they trap infectious agents like viruses and bacteria, and they produce antibodies. Since the adenoids are located at the back of the nasal airway, they provide defense against inhaled substances.
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Health & Medicine News
August 7, 2026
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Aug. 5, 2026 Tiny pollution particles from smoke, soot, and dust may worsen rheumatoid arthritis and raise the risk of painful flares, particularly after prolonged exposure. The findings suggest that avoiding poor air quality could become an important part of ...
Aug. 5, 2026 A prescription form of THC helped many people with PTSD escape recurring trauma-related nightmares, with more than one-third reporting that the nightmares disappeared completely after ten weeks. The ...
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Aug. 5, 2026 Stanford researchers discovered immune cells in flatworms that explode within minutes, killing nearby bacteria and foreign cells before vanishing completely. Their unusually fast and localized attack ...
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Aug. 4, 2026 Chemotherapy-surviving ovarian cancer cells may release fructose to help neighboring tumor cells loosen, escape, and spread. The discovery suggests that sugary diets and cholesterol-lowering drugs ...
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