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The catalog has gold versions of several other organs (kidney

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Folding solves the geometry problem: the same cortex packed into the actual skull's volume by being convoluted rather than smooth

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photoreceptor necklace | gold vermeil pp_immuno The catalog has gold versionsPhotoreceptor necklace 18k gold vermeil If you have spent twenty years on rhodopsin, arrestin, or retinal degeneration, you already know how strange this cell is. The photoreceptor is the only neuron in the body whose normal job is to fire less when stimulated, not more. Light hyperpolarises it. Darkness is when it talks. The Science of the Photoreceptor The photoreceptor outer segment is a stack of membrane discs (about a thousand in rods, fewer and