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Answer:
Nails start in the nail root, hidden under the cuticle. When cells at the root of the nail grow, the new nail cells push out the old nail cells. These old cells flatten and harden, thanks to keratin, a protein made by these cells. The newly formed nail then slides along the nail bed, the flat surface under your nails.
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» The root of the nail is otherwise called the germinal matrix. The root piece of this nail recline beneath the skin, under the nail, and expands few into the finger. It delivers the majority of the capacity of the nail and the nail bed.
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