Pathology · single question

Which of the following anatomical features does NOT contribute to adult obstructive sleep apnea?

  1. Elongated soft palate/uvula
  2. HYPOtrophy (atrophy) of tonsils
  3. Macroglossia (enlarged tongue)
  4. Retrognathia (retruded jaw)
Show answer and explanation

Correct answer: B. HYPOtrophy (atrophy) of tonsils

OSA = narrowed upper airway. Contributing factors: macroglossia, retrognathia, HYPERtrophic tonsils, elongated soft palate, obesity, nasal obstruction. HYPOtrophy (smaller tonsils) would REDUCE obstruction, NOT contribute to OSA. Source confirms: 'EXCEPT: hypotrophy of tonsils.'
  • A. Elongated soft palate collapses during sleep — DOES obstruct airway.
  • B. CORRECT (EXCEPT). HYPOtrophy = smaller tonsils = LESS obstruction. HYPERtrophy contributes; HYPOtrophy does not.
  • C. Macroglossia reduces pharyngeal airspace — DOES contribute to OSA.
  • D. Retrognathia reduces retrolingual airspace — DOES contribute to OSA; key surgical target.

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