Figure 7 - Relationship of CP and TP EMG activities to UES pressure during rest and excitation.

a: Actual responses. b: Graph of the relationship between EMG and UES pressure. The UES pressure changed five times: one swallow (S) preceded and followed by two rises in UES pressure induced by whistling in an awake dog lying on its side. Note that UES pressure changes correlated well (p<.05) with integrated CP-EMG but not integrated TP-EMG. TP, thyropharyngeus: CP, cricopharyngeus. (Source: Lang et al.,¹ with permission of the American Physiological Society.)