The ganglion cell layer (ganglionic layer) is a layer of the retina that consists of retinal ganglion cells and displaced amacrine cells.
In the macula lutea, the layer forms several strata.
The cells are somewhat flask-shaped; the rounded internal surface of each resting on the stratum opticum, and sending off an axon which is prolonged into it.
From the opposite end numerous dendrites extend into the inner plexiform layer, where they branch and form flattened arborizations at different levels.
The ganglion cells vary much in size, and the dendrites of the smaller ones as a rule arborize in the inner plexiform layer as soon as they enter it; while those of the larger cells ramify close to the inner nuclear layer.
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—Blaise Pascal (1623–1662)
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