B8 MOTONEURON

B8 is a neuron located on the dorsal surface of the buccal ganglia. It has a projection down the ipsi- and contralateral lateral buccal nerves where it innervates the anterior jugalis muscle in the buccal mass. During feeding cycles, B8 is active during the swallow phase. B8 is inhibited by protraction phase interneuron N1M and rasp phase interneuron N2v as well as swallow phase interneuron N3p. B8 is electrically coupled with swallow phase interneurons N3t, N3p and OC. It receives strong excitation from the modulatory interneuron, CGC.

References

Benjamin, P.R., 2012. Distributed network organization underlying feeding behavior in the mollusk Lymnaea. Neural Syst Circuits 2, 4. https://doi.org/10.1186/2042-1001-2-4

Benjamin, P.R., Rose, R.M., 1979. Central generation of bursting in the feeding system of the snail, Lymnaea stagnalis. J Exp Biol 80, 93–118. https://doi.org/10.1242/jeb.80.1.93

Benjamin, P.R., Rose, R.M., Slade, C.T., Lacy, M.G., 1979. Morphology of Identified Neurones in the Buccal Ganglia of Lymnaea Stagnalis. Journal of Experimental Biology 80, 119–135. https://doi.org/10.1242/jeb.80.1.119

Crossley, M., Staras, K., Kemenes, G., 2016. A two-neuron system for adaptive goal-directed decision-making in Lymnaea. Nat Commun 7, 11793. https://doi.org/10.1038/ncomms11793

Elliott, C.J.H., Andrew, T., 1991. Temporal Analysis of Snail Feeding Rhythms: A Three-Phase Relaxation Oscillator. Journal of Experimental Biology 157, 391–408. https://doi.org/10.1242/jeb.157.1.391

Rose, R.M., Benjamin, P.R., 1979. The relationship of the central motor pattern to the feeding cycle of Lymnaea stagnalis. J Exp Biol 80, 137–163. https://doi.org/10.1242/jeb.80.1.137

Straub, V.A., Benjamin, P.R., 2001. Extrinsic modulation and motor pattern generation in a feeding network: a cellular study. J Neurosci 21, 1767–1778. https://doi.org/10.1523/JNEUROSCI.21-05-01767.2001