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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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June 22, 2026
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June 21, 2026 Scientists at Baylor College of Medicine may have uncovered a promising new way to combat Alzheimer’s and Parkinson’s disease. Instead of trying to stop Tau and alpha-synuclein proteins from ...
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June 20, 2026 Scientists have discovered that a gene normally considered a DNA-protecting "good guy" can become dangerous when cells make too much of it. The gene, EXO1, acts like molecular scissors that help repair DNA, but when overproduced it starts cutting ...
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June 19, 2026 A newly identified molecule called OLE helped restore the brain’s immune cells to a more protective state in Alzheimer’s models. The treatment reduced toxic plaque buildup and improved memory, ...
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June 18, 2026 Scientists at Mayo Clinic have uncovered a surprising new way the kidneys conserve water, revealing a hidden backup system that works independently of the hormone long believed to control the ...
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