The Organization of the Lamina ganglionaris of the Bee

Abstract

The lamina ganglionaris of the bee contains the first synaptic region in the optic tract. The nine retinula cells of one visual unit (ommatidium) either end in the lamina as short visual fibres or end as long visual fibres in the second optic ganglion (medulla). Each axon bundle of nine fibres from one ommatidium is associated with four different second order neurons (L-fibres) to form a single lamina cartridge. Processes of additional fibres invade single groups of cartridges. © 1975, Verlag der Zeitschrift. All rights reserved.