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Message definition (Amacrine Cell )
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Amacrine cells are postsynaptic targets of [[Bipolar Cell|bipolar cells]]; these bipolar-to-amacrine cell synapses occur in the inner plexiform layer and are thought to be excitatory. Amacrine cells have their postsynaptic targets in the inner plexiform layer as well. Amacrine cell dendrites are known to synapse onto [[Ganglion Cell |ganglion cell]] neurites in the IPL, mediating "antagonistic inputs from bipolar cells in the ganglion cell's surround." <ref name="Tessier"></ref> These synapses are thought to be inhibitory.; this suggests that amacrine cells serve to regulate the output of [[Bipolar Cell|bipolar cells]] in a negative-feedback loop fashion, and in fact it is thought that these amacrine-to-bipolar cell synapses are inhibitory. Further, "amacrine processes are also seen to contact other amacrine processes" in the IPL. These amacrine-to-amacrine cell synapses, interestingly enough, are thought to be excitatory. Amacrine cells are also known to form "reciprocal synapses" onto the [[Bipolar Cell |bipolar cells]] that synapse onto them<ref name="Dowling 1966">J. E. Dowling & B. B. Boycott (1996) [http://links.jstor.org/sici?sici=0080-4649%2819661115%29166%3A1002%3C80%3AOOTPRE%3E2.0.CO%3B2-N title=Organization of the Primate Retina: Electron Microscopy] Proc. R. Soc. A <strong>166</strong> (1002): 80–111</ref> Thus, amacrine cells form synapses onto [[Bipolar Cell|bipolar cells]], [[Ganglion Cell|ganglion cells]], and other amacrine cells, all in the inner plexiform layer. Translation ===Connections=== Connections
Amacrine cells are postsynaptic targets of
bipolar cells ; these bipolar-to-amacrine cell synapses occur in the inner plexiform layer and are thought to be excitatory. Amacrine cells have their postsynaptic targets in the inner plexiform layer as well. Amacrine cell dendrites are known to synapse onto
ganglion cell neurites in the IPL, mediating "antagonistic inputs from bipolar cells in the ganglion cell's surround."
[1] These synapses are thought to be inhibitory.; this suggests that amacrine cells serve to regulate the output of
bipolar cells in a negative-feedback loop fashion, and in fact it is thought that these amacrine-to-bipolar cell synapses are inhibitory. Further, "amacrine processes are also seen to contact other amacrine processes" in the IPL. These amacrine-to-amacrine cell synapses, interestingly enough, are thought to be excitatory. Amacrine cells are also known to form "reciprocal synapses" onto the
bipolar cells that synapse onto them
[2] Thus, amacrine cells form synapses onto
bipolar cells ,
ganglion cells , and other amacrine cells, all in the inner plexiform layer.
↑ Cite error: Invalid <ref> tag;
no text was provided for refs named Tessier ↑ J. E. Dowling & B. B. Boycott (1996) title=Organization of the Primate Retina: Electron Microscopy Proc. R. Soc. A 166 (1002): 80–111
