McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

What is the direct pathway nerve impulses take after photoreceptors perceive light?

A. receptor cells - bipolar neurons - ganglion cells
B. bipolar neurons - ganglion cells - receptor cells
C. horizontal cells - bipolar neurons - ganglion cells
D. bipolar neurons - ganglion cells - amacrine cells


2. Why have five types of cells in a nervous pathway from the retina to the brain?

A. Each type detects a different color.
B. Each type has a separate role in vision.
C. Some neurons send images to different portions of the visual cortex.
D. It gives a more complex visual image.
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