What are the functions of nails?

What are the functions of nails? The nails embryonic origin starts composing at t​he seventh to eighth weeks during development and is entirely constructed at childbirth. The human anatomy of the nail comprises epithelial and connective tissue components; nail matrix, nail bed, nail plate, nail folds, mantle, hyponychium, and isthmus. The nail functions to provide sensory, thermoregulatory, and protective features to the distal fingers and toes. The average nail lengthens two-three millimeters every four weeks, replacing itself entirely once every six-nine months, depending on the individual.​ The nail growth, color, consistency, and appearance may provide insight into an individual's health and manifestations of localized or deeper systemic conditions