12/14/2023 0 Comments Frontal bone skull![]() Medial to the supraorbital ridges is the glabella, a small depression that ends inferiorly at the nasal bones. It continues posteriorly along the superior margin until joining with the sphenoid bone. Inside the orbits, the frontal bone continues inferiorly along the medial margin until it meets the ethmoid and lacrimal bones. Two small holes, known as the supraorbital foramina, are found above each orbit in the supraorbital ridge and provide exit points to the forehead for the supraorbital nerve and the supraorbital artery.Īt the inferior end of the supraorbital ridge are the supraorbital margins, where the frontal bone makes a sharp angle to form the superior and medial margins of the orbits. This region corresponds to the brow of the skull and forms the anterior cover for the frontal sinuses. Just above the orbits is a thickened region of bone known as the supraorbital ridge. Several important landmarks are found on the frontal bone. ![]() The coronal suture forms the posterior boundary of the frontal bone where it meets the parietal bones. It is located superior to the nasal bones and maxillae and anterior to the parietal bones.Īt its inferior border, the frontal bone forms the roof of the orbits and the brow. The frontal bone is a bowl-shaped bone in the frontal (forehead) region of the skull. It gives shape to the skull and supports several muscles of the head. The frontal bone plays a vital role in supporting and protecting the delicate nervous tissue of the brain. It is one of eight bones that form the cranium, or brain case. The frontal bone is a bone of the skull found in the forehead region. ![]()
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