Superior Temporal Line Of The Parietal Bone, Lateral View

Description

Linea temporalis superior on the lateral surface of the parietal bone arcs as a faint, curved ridge above the more inferior linea temporalis inferior, marking the superior limit of the temporal fossa on the side of the cranium. From this fixed lateral perspective, the ridge sits inferior to the parietal eminence and trends anteroinferiorly toward the frontoparietal region, while the surrounding parietal table remains smooth and gently convex. Superiorly, the bone rises toward the sagittal border, and posteriorly it tapers toward the occipital margin, giving you reliable orientation even when the temporal lines themselves are subtle. The line is discrete. Recognizing the superior temporal line matters because it defines where the temporalis fascia and the superior fibers of temporalis relate to the calvaria, a relationship surgeons exploit when planning and closing temporal and pterional exposures. In lateral skull work, the temporal lines guide placement of skin and fascial incisions and help anticipate how much muscle must be mobilized to reach the squamous temporal region without unnecessary injury to the deep temporal nerves and vessels. The controlled lighting and surface finish in this illustration make the low-relief ridge readable, which is exactly what students struggle with on dry skulls and what preoperative sketching often requires when landmarks are described as “faint.” Use this illustration in osteology and head and neck anatomy teaching to reinforce the boundaries of the temporal fossa and to distinguish linea temporalis superior from linea temporalis inferior in a single, stable orientation. It also fits neurosurgery or maxillofacial lecture slides discussing temporalis dissection planes for burr hole placement and craniotomy flap design, or for medical publishing layouts that need an accurate lateral cranial landmark without distracting soft tissue. Anatomical accuracy verified by SciePro's Medical Advisory Board.