Lamina monopolar cells are a class of neurons in the most peripheral neuropil of the arthropod visual system, the lamina.[1] Most insects, including flies, have five distinct classes lamina monopolar cells: L1, L2, L3, L4, and L5.[2] L1, L2, L3, receive direct synaptic input from the photoreceptors in the lamina, and send axons into the second-order neuropil of the visual system, the medulla.

  1. ^ Cajal, S.R.; Sanchez, D. (1915). "Contribución al conocimiento de los centros nerviosos de los insectos. Parte I Retina y centros opticos". Trab. Lab. Invest. Biol. Univ. Madrid. 13: 1–168. doi:10.5962/bhl.title.37839.
  2. ^ Fischbach, KF; Dittrich, AP (1989). "The optic lobe of Drosophila melanogaster. I. A Golgi analysis of wild-type structure. Cell Tissue Res". Cell and Tissue Research. 258 (3): 441–475. doi:10.1007/bf00218858.