The frontal bone is a flat bone located at the front of the skull. It forms the forehead and the upper part of the eye sockets, known as the orbits. This bone plays a crucial role in protecting the brain and supporting the structures of the face. It also contributes to the formation of the nasal cavity. In addition to its protective functions, the frontal bone contains sinuses, which are air-filled spaces that help reduce the weight of the skull and improve voice resonance. These sinuses are part of the paranasal sinuses system, which includes other bones like the maxilla and sphenoid.