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keratin |
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keratinFibrous protein found in the skin of vertebrates and also in hair, nails, claws, hooves, feathers, and the outer coating of horns. If pressure is put on some parts of the skin, more keratin is produced, forming thick calluses that protect the layers of skin beneath. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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That's because the protein keratin is the major building block of hair and nails. l) In addition, the erosion might also be partly related to the accumulation of keratin debris, which traps moisture and results in a bacterial infection that can cause ulceration of the epithelial layer and the formation of granulation tissue. As tough as keratin is, a uniform layer the size of a toucan beak would be subject to cracks, says Meyers. |
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