Crossed motor innervation of the base of human tongue
Leszek Kubin, Amy S Jordan, Christian L Nicholas, Jennifer M Cori, John G Semmler, John Trinder
JOURNAL OF NEUROPHYSIOLOGY | AMER PHYSIOLOGICAL SOC | Published : 2015
Muscle fibers of the genioglossus (GG) form the bulk of the muscle mass at the base of the tongue. The motor control of the tongue is critical for vocalization, feeding, and breathing. Our goal was to assess the patterns of motor innervation of GG single motor units (SMUs) in humans. Simultaneous monopolar recordings were obtained from four sites in the base of the tongue bilaterally at two antero-posterior levels from 16 resting, awake, healthy adult males, who wore a face mask with airway pressure and airflow sensors. We analyzed 69 data segments in which at least one lead contained large action potentials generated by an SMU. Such potentials served as triggers for spike-triggered averagin..View full abstract
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Awarded by Australian Research Council
Awarded by NATIONAL HEART, LUNG, AND BLOOD INSTITUTE
The study was supported by the Australian Research Council project grant DP120101343.