Parietal Bone, Posterior View

Description

Shown in posterior orientation, the parietal bone occupies the superolateral aspect of the calvaria, with its internal and external tables implied by the thin, curved crescent of bone. Along the inferoposterior margin, the serrated lambdoid suture line marks its articulation with the occipital bone, the interdigitations running obliquely as the parietal descends toward the asterion. Superiorly and anteriorly the parietal curvature rises toward the sagittal and coronal borders, while the posteroinferior angle approximates the region where the temporal and occipital bones converge. Clean margins. Clear surface texture. Posterior parietal anatomy matters because suture geometry is not just a naming exercise, it is a roadmap for trauma patterns and operative corridors. The lambdoid suture helps distinguish normal serrated articulation from a skull fracture line on plain radiography or CT, and its relationship to the asterion and transverse sinus makes the posterolateral cranial vault a high-stakes area during burr-hole placement and retrosigmoid exposures. In pediatrics, premature fusion can drive positional plagiocephaly or true lambdoid synostosis, so an accurate posterior reference of the parietal border supports teaching and clinical explanation. Use this asset in gross anatomy and osteology modules when you need a focused view of the parietal bone without distracting neighboring elements, and in neurosurgical or radiology publications discussing calvarial fractures, sutural diastasis, or posterior fossa approach landmarks. It also suits patient-facing education on skull sutures because the lambdoid interdigitations read well at close range. Anatomical accuracy verified by SciePro's Medical Advisory Board.