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Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
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12 years ago
It is autumn, and the fall colors are at their best. An orange, black, and tan cat is sitting quietly at the edge of your yard, watching you. You don't see her until she decides to run for cover, even though she was only 20 feet away. With respect to visual receptors, why don't you see her until she runs? What parts of your brain and visual system work together to determine what this moving object is, and whether or not it will harm you?
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12 years ago
Once movement is perceived, the head is swiveled and the intrinsic and extrinsic eye muscles go to work to focus the image on the fovea, and send the information to the visual cortex in the occipital lobe, where memories of cats and their appearance is housed. One's limbic system then may assess if there is danger if one has had a previous bad experience with a cat.
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