Lobulus Parietalis Superior, Posterior View

Description

Posteriorly oriented surface anatomy places the lobulus parietalis superior on the dorsolateral convexity of each cerebral hemisphere, bounded inferiorly by the sulcus intraparietalis and extending superiorly to the superomedial margin approaching the fissura longitudinalis cerebri. Medially, the region continues onto the medial parietal wall toward the precuneus, while laterally it blends into adjacent parietal gyri near the parieto-occipital junction. Blue highlighting on the superior frontal and medial frontal cortex marks the premotor cortex and supplementary motor cortex, positioned anterior to the parietal territory and separated from it by the central sulcus and contiguous postcentral region. The cerebellum sits inferiorly in the posterior cranial fossa, providing an orientation landmark beneath the occipital poles. Spatial context matters here because the superior parietal lobule is a key cortical node for visuospatial integration and reach-to-grasp coordination, interfacing with dorsal stream pathways and premotor planning areas during goal-directed movement. Lesions around the parietal convexity, often in the middle cerebral artery border zones or after traumatic contusion near the parietal eminence, can produce optic ataxia and elements of Balint syndrome, while medial extension toward the precuneus can alter spatial attention networks. This posterior viewpoint helps you read the intraparietal sulcus as a surface landmark that correlates with functional subdivisions used in neurosurgical planning and neuroimaging reports. Clear landmarks. Use this illustration for neuroanatomy and neuropsychology teaching when linking sulcal anatomy to functional localization, or for atlases and review articles discussing parietal lobe syndromes and dorsal visuomotor circuits. It also supports clinical communication in stroke conferences and tumor boards where surface anatomy guides correlation with MRI and operative approaches to parietal convexity lesions. Anatomical accuracy verified by SciePro's Medical Advisory Board.