MICROANATOMY

Detailed explanation-1: -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.

Detailed explanation-2: -Nails are accessory organs of the skin . They are made of sheets of dead keratinocytes and are found on the far (or distal) ends of the fingers and toes. The keratin in nails makes them hard, but flexible. Nails serve a number of purposes, including protecting the digits, enhancing sensations, and acting as tools.

Detailed explanation-3: -Cholesterol is the primary lipid component of the nail plate. In contrast to the 10% lipid content and 20–40% water content in the stratum corneum, nail plate contains 0.1–1% lipids and 7–12% water (varies with relative humidity) [9].