Free edge is the part of the nail that can be filed and shaped. It is an extension of the __________ that overlaps the hyponychium.

__________ are the folds of skin that overlap the sides of the nail. It holds your nail in place and protects the nail plate edges.

Matrix is the only living reproducing part of the nail, this is situated directly below the ___________.

Onychogryphosis pertains to extreme thickening curvature of the nails, usually it is caused by varying degree of ___________.

__________ are caused by an accident during manicure service.