Term
| How many types of rod bipolar cells are there? |
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Definition
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Term
| What type of glutamate receptor does the rod bipolar cell have? |
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Definition
| metabotropic receptor mGluR6, ON bipolar only |
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Term
| Why are rod PR's more senstive? |
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Definition
| converging pathway leads to less resolution, but greater sensitivity |
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Term
| What do horizontal cells do? |
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Definition
| modulate glutamate release from cones and rods |
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Term
| What neurotransmitters do horizontal cells use? |
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Definition
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Term
| What 'algorithm' do horizontal cells employ? |
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Definition
| sum light across broad region, then subtract local signal |
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Term
| What are found in horizontal cell processes at the cone pedicle? |
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Definition
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Term
|
Definition
| support neural retinal tissue, control interstitial ionic concentrations |
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Term
| What role do Muller cells play with regard to cones? |
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Definition
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Term
| How many rod PR's per nerve fiber? |
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Definition
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Term
| What is an on center cell? |
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Definition
| if light strikes the center, the GC fires, light on surround only will not fire |
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Term
| What is an off center cell? |
|
Definition
| GC cells only fire if light strikes the surround, not the center |
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Term
| What synapses in IPL sublayer A? |
|
Definition
| flat cone bipolar cells --> OFF ganglion cells |
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Term
| What synapses in IPL sublayer B? |
|
Definition
| invaginating cone bipolars --> ON ganglion cells |
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Term
| What cells project to the magnocellular layer? |
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Definition
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Term
| What project to the parvocellular layer? |
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Definition
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|
Term
| What are phasic cells for? |
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Definition
|
|
Term
| what are tonic cells for? |
|
Definition
| spatial resolution and color vision |
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Term
| What is an electroretinogram(ERG)? |
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Definition
| measures electrical changes in the retinal cells |
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