Final Answer:
The smooth, arched elevation above the orbit that forms the eyebrow ridge is called the frontal eminence.
Step-by-step explanation:
The frontal eminence refers to the rounded prominence on the frontal bone of the skull, situated above each eye socket (orbit). It is a distinctive feature that contributes to the overall structure of the forehead and the appearance of the eyebrows. The frontal eminence varies in prominence among individuals, and its size and shape can influence the aesthetics of the forehead and the entire face. This anatomical term is commonly used in the fields of anatomy and anthropology to describe the bony structure associated with the forehead and eyebrow region.