Explanation:
-file a V-shape into the crack
The keratinous nail plate is immediately viewable and is generally called the nail. It covers the new bed which is the region where the nail sticks to the finger over the sections like the lunula- these are the half moon shapes at the base of the nail. The matrix is the region directly before the lunula while, the germinal matrix below the lunula is closest to the knuckle where most of the cell production occurs. The periosteum which are structures surrounding the nail plates and the cuticle which is a region of skin that protects the nail matrix where nails grow out of the fin ger.
Learn more about keratin at brainly.com/question/12901614
#LearnWithBrainly
