Neuroreceptors and Signal Transduction pp 47-60 | Cite as
GABA-Activated Chloride Channels in the Retinal Neurons and their Role in the Visual Function
Abstract
The vertebrate retina consists of five types of neurons orderly arranged in three layers. Signals received by the photoreceptor mosaic are relayed to bipolar cells, and then forwarded to retinal ganglion cells. The axon of retinal ganglion cells send the visual signal processed in the retina to the higher CNS. The neuronal chain made of photoreceptors, bipolar cells and ganglion cells provides the most direct signal pathway in the retina. Two types of interneurons, horizontal cells and amacrine cells, are believed to make an inhibitory pathway connecting the above-mentioned direct routes laterally. In this way, horizontal and amacrine cells contribute to the formation of receptive field surrounds which antagonize with the receptive field center.
Keywords
Bipolar Cell Amacrine Cell Horizontal Cell Cone Photoreceptor Terminal BulbPreview
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