Outer plexiform layer  From Wikipedia, the free encyclopedia
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retina. (Outer plexiform layer labeled at right, sixth from the
top.) Plan of retinal neurons. (Outer plexiform layer labeled at
left, fourth from the bottom.) Latin Stratum plexiforme externum
retinae Gray's subject #225 1016  The outer plexiform layer
(external plexiform layer) is a layer of neuronal synapses in
the retina of the eye. It consists of a dense network of
synapses between dendrites of horizontal cells from the inner
nuclear layer, and photoreceptor cell inner segments from the
outer nuclear layer. It is much thinner than the inner plexiform
layer, where amacrine cells cells synapse with retinal ganglion
cells.[1]  The synapses in the outer plexiform layer are between
the rod cell endings or cone cell branched foot plates and
horizontal cells. Unlike in most systems, rod and cone cells
release neurotransmitters when not receiving a light signal.
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