Visual Pathways

Visual Pathways

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Credit: Spencer Sutton/SCIENCE PHOTO LIBRARY


Caption: Illustration of visual pathways from the retina of the eye to the brain cortex. At the back of each eye, the light-sensitive membrane of the retina transforms visual images into nerve impulses. These images are binocular in that the visual field of each eye overlaps. Each eye has a unique field of view, which is also analysed by the brain. Light that falls on the right side of each retina (colored red) from the left field of view, passes as impulses to the right visual cortex of the brain via the optic nerves at centre, and chiasma (cross-point of these nerves). This is reversed for light that falls on the left side of the retina (colored green).

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Keywords: anatomical, anatomy, artwork, black background, brain, brain anatomy, brain and vision, brain cortex, central nervous system, chiasma, cns, cornea, drawing, eye, eye cross-section, eyeball, field of vision, human body, human brain, illustration, iris, lens, medical, medical illustration, nerve, optic circuit, optic nerve, pathways, pupil, retina, sight, vision, visual cortex, visual field, visual pathways

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