Nails Anatomy

Nails AnatomyA nail is a layer of hard substance - keratin. It grows with the speed of 1/8 - 1/4 inches (1 inch equals 2.5 cm) a month depending on the person's age and health condition. Nails don't breath. The nail-bed is filled with blood rich in oxygen thanks to the capillary system that is well-developed.Nails don't evaporate moisture.Nails don't need vitamins and minerals as they consist of