Schematic overview of the stomatogastric nervous system (STNS) of the crab, Cancer borealis.

The pink circle marks the application site for the VSD RH795. The black circles illustrate two different extracellular recording sites and the corresponding neuronal signals. The three main neuron types (PD, LP, PY) participating in the pyloric rhythm can be monitored on the lvn. The pdn selectively shows the activity of the two PD neurons. Grey cell bodies illustrate neurons in the stomatogastric ganglion (STG), the oesophageal ganglion (OG) and the commissural ganglia (CoG). Neurons: PD, pyloric dilator neuron; LP, lateral pyloric neuron; PY, pyloric constrictor neuron. Nerves: ivn, inferior ventricular nerve; ion, inferior esophageal nerve; son, superior esophageal nerve; dpon, dorsal posterior oesophageal nerve; stn, stomatogastric nerve; aln, anterior lateral nerve; mvn, median ventricular nerve; dgn, dorsal gastric nerve; dvn, dorsal ventricular nerve; lvn, lateral ventricular nerve; gpn, gastro pyloric nerve; lgn, lateral gastric nerve; pdn, pyloric dilator nerve.