Input (grade 13): Adenoids (or pharyngeal tonsils, or nasopharyngeal tonsils) are a mass of lymphoid tissue situated at the very back of the nose, in the roof of the nasopharynx, where the nose blends into the mouth.
Output (grade 10): Normally, in children, they make a soft mound in the roof and posterior wall of the nasopharynx, just above and behind the uvula.