Enclosed in a bony cavity (orbit) and moved by six muscles, this complex organ collects light signals and transmits them to the brain to form images.

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Photo credit: © QA International / Alamy / Afripics
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Keywords: body, bony, brain, cavity, collects, color, complex, cross, enclosed, eyeball, form, human, illustration, images., light, moved, muscles, organ, section, sense, sight, signals, transmits