Nails Anatomy
Nails Anatomy A 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 dead protein and that's why they can't grow faster with the help of these substances. Nails are the firm surface that helps to protect gentle and sensitive finger endings. The nail growth starts in matrix, the tissue that is the nail base. Matrix is the cell layer in the area where skin cells separate from nail plate. The matrix damage causes nail deformation and sometimes can even stop nails from growing. The nail starts from nail root that is situated under skin. Nail root and matrix are protected with "nail folding" that is a a skin folding at the nail b...