Question
Relative colour and luminosity of photoreceptive input under changing light conditions are regulated and maintained by?
| A. |
Muller cells
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| B. |
Amacrine Cells
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| C. |
Ganglion cells
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| D. |
Retinal astrocytes
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Show Answer
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Correct Answer � B
Explanation
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Ans. B. Amacrine cells.
Amacrine cells serve the important function of increasing visual acuity by modulating photoreceptive signals, serving to adjust or maintain the relative colour & luminosity inputs under changing light conditions.
Amacrine cells are interneurons in the retina. Amacrine cells are responsible for 70% of input to retinal ganglion cells. Bipolar cells, which are responsible for the other 30% of input to retinal ganglia, are regulated by amacrine cells.
