How is the horizontal curve of the nail described?

The horizontal curve of the nail is described as a C-curve. This term refers to the natural curvature that occurs along the width of the nail plate, resembling the shape of the letter "C." Understanding this curve is essential for nail technicians to ensure proper nail care and aesthetic application. A well-defined C-curve contributes to the strength, durability, and overall appearance of the nail.

In contrast, other terms like "arch," "lateral curve," and "proximal curve" may describe different aspects of nail shape or growth patterns but do not specifically denote the horizontal curvature. The arch typically refers to a more general contour that may apply to other features, while a lateral curve involves side-to-side curvature, and a proximal curve suggests a direction of growth or curvature at the base of the nail closest to the cuticle.