Skip to main content
. 1999 Jul 1;19(13):5449–5463. doi: 10.1523/JNEUROSCI.19-13-05449.1999

Fig. 1.

Fig. 1.

Schematics of the stomatogastric nervous system, including somata location and axonal pathways of the proctolin projection neurons MPN, MCN1, and MCN7. A, There is a pair of MPN somata located either in the OG or in the nerve posterior to this ganglion. Each MPN projects an axon through eachson to the CoG and two axonal branches through thestn to the STG. It also projects an axonal branch from each son through the peripheral nervedpon. For clarity, the complete projection of only one MPN is shown. B, There is a single MCN1 and MCN7 in each CoG. Each MCN1 projects an axon through the ion andstn to the STG. Each MCN7 projects an axon through theson and stn to the STG. For clarity, the complete projection of only one MCN1 and one MCN7 is shown. Ganglia;CoG, commissural ganglion; OG, esophageal ganglion; STG, stomatogastric ganglion; nerves:dgn, dorsal gastric nerve; dpon, dorsal posterior esophageal nerve; ion, inferior esophageal nerve; lgn, lateral gastric nerve; lvn, lateral ventricular nerve; mvn, medial ventricular nerve; pdn, pyloric dilator nerve; son, superior esophageal nerve; stn, stomatogastric nerve; neurons: MCN1, modulatory commissural neuron 1;MCN7, modulatory commissural neuron 7;MPN, modulatory proctolin neuron. Anterior is toward thetop, and posterior is toward thebottom.