Pathology · single question
Which of the following anatomical features does NOT contribute to adult obstructive sleep apnea?
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.