The supraorbital foramen is a small opening located in the frontal bone of the skull, just above the eye socket. It allows the passage of the supraorbital nerve and blood vessels, which supply sensation to the forehead and scalp. This anatomical feature is important for facial sensation and is found in most humans. In some individuals, the supraorbital foramen may be present as a notch instead of a complete foramen. Variations in its size and shape can occur among different populations, making it a point of interest in studies of human anatomy and evolution.