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nasal cycle |
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nasal cycle Respiratory physiology Alternating congestion and decongestion of the nasal airway that occurs in 70% of adults, controlled by the autonomic nervous system, and which may be affected by circadian changes in hormone levels,
temperature, humidity, posture, and emotion; in the face of a unilateral fixed obstruction, the congestion phase of the side opposite the obstruction may be interpreted as an abnormality of the normal side or 'paradoxic nasal
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