Superior Temporal Gyrus Of The Brain, Lateral View

Description

Superior temporal gyrus (gyrus temporalis superior) occupies the superior aspect of the temporal lobe on the lateral surface of the cerebral hemisphere, immediately inferior to the lateral sulcus (Sylvian fissure) and extending anteroposteriorly toward the temporal pole and the posterior temporal region. Superiorly it abuts the opercular margins of the frontal and parietal lobes across the lateral sulcus, while its inferior boundary is defined by the superior temporal sulcus, separating it from the middle temporal gyrus. Posteriorly, the gyrus approaches the parietal operculum and supramarginal gyrus region, an area where surface landmarks help orient the perisylvian language network. Surface anatomy matters. In the dominant hemisphere, the posterior superior temporal gyrus corresponds to the core of Wernicke area, and lesions here, whether from a middle cerebral artery (inferior division) infarct, hemorrhage, or infiltrating glioma, classically produce fluent aphasia with impaired comprehension and repetition. The superior temporal plane houses Heschl gyri (primary auditory cortex) within the lateral sulcus, so a lateral perspective that clearly defines the lateral sulcus and the exposed superior temporal gyrus helps learners connect what is visible on the convexity with the auditory and language cortices partly concealed in the Sylvian fissure. This is also a common corridor in temporal lobe epilepsy discussions, where seizure semiology and surgical planning often reference lateral temporal landmarks and the perisylvian cortex. Neuroanatomy educators can place this illustration into cortical lobe and sulcal mapping modules, language localization lectures, and clinical correlations on aphasia syndromes and MCA stroke territories. Medical publishers and clinical teams will find it well suited for figures in neurology, neurosurgery, neuroradiology, and speech-language pathology materials that require a fixed lateral surface reference for the superior temporal gyrus and adjacent sulci. Anatomical accuracy verified by SciePro's Medical Advisory Board.