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Title: List and describe the two types of retinal bipolar cells. Post by: ppk on Jul 15, 2011 List and describe the two types of retinal bipolar cells.
Title: Re: List and describe the two types of retinal bipolar cells. Post by: star on Jul 18, 2011 Light-on bipolar cells are inhibited in the dark (due to photoreceptor release of glutamate) and released from this inhibition in the light. Light-off bipolar cells are the opposite. They are activated by the glutamate released in the dark and inhibited in the light. The difference between these cell types is the type of glutamate receptor (excitatory or inhibitory).
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