Brow ridge
The brow ridge is the bony projection of the frontal bone above the eye sockets. Its prominence varies among individuals and species.
Frontal bone: The skull bone that forms the forehead, part of the cranial floor, and the roofs of the eye sockets. The brow ridge is a projection of this bone.
Craniofacial development: The growth and formation of the skull and face from embryonic development through maturity. It produces the frontal bone and its changing contours.
Homo erectus: An extinct human species that lived in Africa and Eurasia from roughly 1.9 million years ago onward. Many specimens have a thick, continuous supraorbital torus.
Forensic anthropology: The application of biological anthropology to legal investigations, especially the analysis of human remains. Brow-region morphology can contribute to skeletal assessment, but is not a reliable standalone identifier.
Brow bone: A common, nontechnical name for the bony area above the eyes, often used for the brow ridge. It is an informal synonym, not a separate anatomical structure.
Orbit (anatomy): A bony cavity in the skull that contains an eyeball and its associated structures. The ridge borders the upper part of each orbit.
Frontal sinus: An air-filled cavity within the frontal bone, usually developing during childhood. Its size and position can affect the bone's local contour, but do not alone determine ridge prominence.
Neanderthal: An extinct human group that lived across Europe and parts of Asia until about 40,000 years ago. Neanderthal skulls commonly show prominent brow-region morphology.
Craniofacial anthropometry: The measurement of dimensions and proportions of the skull and face. Standard measurements locate and quantify the ridge and adjacent orbital margins.
Supraorbital torus: A thickened, often continuous bony bar above the eye sockets, especially prominent in some fossil hominins. It is a more specific form of supraorbital projection than the general term brow ridge.