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. 2022 Nov 23;13:1047106. doi: 10.3389/fphys.2022.1047106

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Copyright © 2022 Lee and Watson.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The Melibe buccal ganglion. (A) Picture of the buccal ganglion on the esophagus. A portion of the pedal ganglion, which is part of the fused cerebral-pleural-pedal complex, is visible in the top left. (B) Diagram of the ganglion and its nerves. The PN leaves the BG posteriorly and runs towards the stomach and intestines. In neurophysiological experiments examining the effect of stomach distention on activity, recordings were made from the severed distal end of the PN (conveying afferent signals from the stomach).