Figure 1 - Relationship of deglutitive vocal cord kinetics to other events of the oropharyngeal phase of swallowing during 5-mL barium swallows.
From the following article
Reflex interaction of pharynx, esophagus, and airways
Reza Shaker
GI Motility online (2006)
doi:10.1038/gimo11
Bolus transit through the pharynx and across the upper esophageal sphincter (UES) begins and ends while the vocal cords are at maximal adduction. TB-O, onset of tongue base movement; SH-O, onset of superior hyoid movement; SM-O, onset of submental myoelectrical activity; UESO, UES opening; OT-O, onset of bolus movement from the mouth; PT-O, arrival of bolus into pharynx. (Source: Shaker et al.1 with permission from American Gastroenterological Association)
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