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The Stomach’s Clock
STOMATOGASTRIC GANGLION · A CENTRAL PATTERN GENERATOR · ~30 NEURONS
NEUROMODULATORbaseline
One circuit, many rhythms. The wiring never changes — only the chemistry bathing it does. Turn it down to nothing and the rhythm falls apart.
Frequency —. The same three cells, retuned by chemistry. Drag to orbit · ⌘/Ctrl+scroll to zoom.
MEMBRANE POTENTIALPD · LP · PY
The triphasic pyloric rhythm — pacemaker first, then LP, then PY, each released from inhibition in turn. The signature of a central pattern generator.