How is a fingernail made? 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.
Where do fingernails arise from? It originates from the actively growing tissue below, the matrix. The nail plate (corpus unguis) sometimes referred to as the nail body, is the visible hard nail area from the nail root to the free edge, made of translucent keratin protein.
What are real fingernails made of? Your nails are made of keratin
Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body. Keratin plays an important role in nail health.
Are fingernails bone or skin? Fingernails and toenails are made from skin cells. Structures that are made from skin cells are called skin appendages. Hairs are also skin appendages. The part that we call the nail is technically known as the “nail plate.” The nail plate is mostly made of a hard substance called keratin.