A thin, horny, transparent plate covering the dorsal surface of the tip of each finger; comprised of dead keratin cells. The fingernail is a complex unit. Most people’s fingernails take three to six months to completely grow out.
June 1, 1996
Nail technicians should know as much about the inside of the nail as the outside. Here’s an anatomy lesson on the onychium. Pay attention – there’s going to be a test at the end.