Adenoids

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Dictionary Meaning and Definition on 'Adenoids'

Wikipedia Meaning and Definition on 'Adenoids'


Adenoids (or pharyngeal tonsil, or nasopharyngeal tonsil) are a mass of lymphoid tissue situated posterior to the nasal cavity, in the roof of the nasopharynx, where the nose blends into the throat.

Normally, in children, they make a soft mound in the roof and posterior wall of the nasopharynx, just above and behind the uvula.

Adenoids, unlike other types of tonsils, have pseudostratified columnar ciliated epithelium.

They also differ from the other tonsil types by lacking crypts. The adenoids are often removed along with the tonsils. This can cause a very sore throat for about a week and rather unpleasant breath. Most people's adenoids are not even in use after a person's third year, but if they cause problems they must be taken out or they may otherwise shrink.

[See more about Adenoids at Dictionary 3.0 Encyclopedia]

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