What anatomical feature does the natural arch of the eyebrow follow?

The natural arch of the eyebrow follows the curve of the orbital bone, which is a key anatomical structure in the facial skeleton. This area essentially frames the eye and influences the overall shape of the eyebrow. The orbital bone provides a natural guide for shaping the brow, emphasizing its function both in aesthetic terms and in the protection of the eye.

When considering the relationship between the eyebrow arch and the orbital bone, it's evident that this bony structure significantly impacts where the brow naturally sits and how it curves. Many beauty practices focus on enhancing this natural line, ensuring that the eyebrow shape aligns harmoniously with the underlying bone structure. Other anatomical features, while important to facial aesthetics, do not dictate the natural arch of the eyebrow to the same extent as the orbital bone.