Superior Temporal Sulcus On The Of The Brain, Anatomy

Description

Superior temporal sulcus (STS) runs along the lateral aspect of the temporal lobe, coursing anteroposteriorly and remaining roughly parallel to the lateral sulcus (Sylvian fissure) superiorly. From this fixed lateral cortical perspective, the STS forms a clear boundary between the superior temporal gyrus superiorly and the middle temporal gyrus inferiorly, placing it immediately inferior to the auditory-related cortex along the superior temporal plane. Posteriorly, its trajectory carries it toward the temporoparietal junction, where the sulcal pattern becomes more variable but still anchors orientation on the lateral cerebral convexity. A key landmark. Clinically, the STS sits in a neighborhood that matters for awake mapping and lesion planning, because adjacent cortex participates in language comprehension (dominant hemisphere, posterior superior temporal region) and multimodal integration relevant to social perception and biological motion. Its relationship to the lateral sulcus also helps localize peri-Sylvian pathology, including tumors, arteriovenous malformations, and cortical dysplasias that present with focal seizures and can distort the normal sulcal pattern on MRI. The lighting and surface modeling in this illustration support sulcal identification without needing a sectional cut, which is often how sulci are first taught but not how they are appreciated during lateral cortical inspection. Use this illustration in neuroanatomy and cognitive neuroscience teaching when you need a named sulcus that reliably separates the superior and middle temporal gyri, or in neuroradiology and neurosurgery materials to annotate lateral temporal lobe landmarks on preoperative planning figures. It also fits well in publisher layouts discussing peri-Sylvian language networks, temporal lobe epilepsy localization, and the sulcal anatomy referenced in fMRI and EEG source modeling. Anatomical accuracy verified by SciePro's Medical Advisory Board.