A Transduced Visual Signal Is Transmitted from the Photoreceptor Cells

question 137

Multiple Choice

A transduced visual signal is transmitted from the photoreceptor cells to the bipolar cells to the ganglion cells in the retina. However, there are two additional layers of cells that make up the retina: amacrine and horizontal cells. What is their function?

• A)to process information across photoreceptive fields of the retina, enhancing contrast and motion detection
• B)to compare the input of the different cones so that we detect color
• C)to ensure that the image projected to the brain is a point-to-point record of photoreceptor activation
• D)They are evolutionary remnants with no known function.

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