Upper airway muscle activity

Upper airway muscle activity refers to the coordinated contraction and relaxation of a group of skeletal muscles—including the genioglossus, tensor palatini, other tongue muscles, and pharyngeal and laryngeal muscles—responsible for maintaining the openness (patency) of the upper airway during respiration, speech, and swallowing[1][2][3][4][5]. Their activity is regulated by complex neural pathways and varies between wakefulness and different sleep stages, playing a critical role in conditions such as obstructive sleep apnea, where reduced muscle activity during sleep can result in airway collapse[1][3][4]. This activity is not a molecular target but a physiological phenomenon involving multiple muscle groups and their neural control.

Other names

upper airway dilator muscle activitypharyngeal muscle activityupper airway neuromuscular activity