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3 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Cone cells |
High visual acuity One neurone toons cone cell 2 separate impulses sent to the brain Can distinguish between two different sources of light. |
1:1 ratio |
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Rod cells |
Low visual acuity Connected in groups to one ganglion cell Many neurones generate one impulse Harder to distinguish between different types of light |
Connected in groups |
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How cones distinguish between colour |
3 types of cones Different optical pigments Different wavelengths absorbed Stimulates different combinations to give a range if colour. |
More than one type |
