Final answer:
The name of the superficial region located between the eyebrows is called the glabella. It is a slight depression on the frontal bone of the forehead, an area that can vary in size among individuals.
Step-by-step explanation:
The superficial region located between the eyebrows is known as the glabella. This area features a slight depression on the frontal bone, which is the single bone that forms the forehead. Above the glabella, the frontal bone forms the supraorbital margin of the orbit. The supraorbital foramen is found near the midpoint of this margin, allowing a sensory nerve to pass through to the forehead. The size of the glabella can vary among individuals, with the feature being generally larger in males.