Teacher’s Guide: Vision (PreK to Grade 2)
Human Vision Light ganlion cell horizontal cell bipolar cell cone rod choroid Figure 4.4: The arrangement of cells in the retina. 4.2.3 Retinal Circuitry Although there are some 120 million rods and 6 million cone cells in the retina, there are less than a million optic nerve fibres which connect them to … ................
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