Diagram of the visual system. Ibn al-Haytham (circa 1027, published in 1083). The oldest known drawing of the nervous system shows a large nose at the bottom, eyes on either side, and a hollow optic nerve that flows out of each one towards the back of the brain.

Diagram of the visual system. Ibn al-Haytham (circa 1027, published in 1083). The oldest known drawing of the nervous system shows a large nose at the bottom, eyes on either side, and a hollow optic nerve that flows out of each one towards the back of the brain.


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