Figure 4 - Reflex contraction of the esophagogastric junction recorded by a reverse perfused sleeve sensor equipped with electrodes to record crural DEMG activity.
From the following article
Sphincter mechanisms at the lower end of the esophagus
Ravinder K. Mittal and Raj K. Goyal
GI Motility online (2006)
doi:10.1038/gimo14
Note the rapid increase in EGJP and crural DEMG activity with each of the two straight leg raises (SLRs). (Source: Sivri and Mittal61, with permission from Amercian Gastroenterological Association.)
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