gobbler80 gobbler80

19-06-2019
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what are fingernails made of?

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claudettemartinez claudettemartinez

19-06-2019

Fingernails grow from the matrix. The nails are composed largely of keratin, a hardened protein. As new cells grow in the matrix, the older cells are pushed out, compacted and take on the familiar flattened, hardened form of the fingernail.. :3

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