Superior Temporal Gyrus Of The Brain

Description

Superior temporal gyrus (STG) occupies the superior aspect of the temporal lobe along the lateral surface of the cerebral hemisphere. Its superior margin abuts the lateral sulcus (Sylvian fissure), while the superior temporal sulcus runs inferiorly and separates STG from the middle temporal gyrus. From this fixed lateral perspective, the long anteroposterior sweep of the gyrus is emphasized, with the posterior segment approaching the parietal operculum and the supramarginal region at the temporoparietal junction. Orientation is unmistakable. Clinical relevance clusters along the posterior STG of the dominant hemisphere, where receptive language cortex (classically Wernicke area) supports speech comprehension and lexical-semantic processing. Infarction in the inferior division of the middle cerebral artery can selectively injure this territory, producing fluent aphasia with impaired comprehension, and the sulcal boundaries in the illustration help you teach why small cortical lesions can yield disproportionate language deficits. Anterior and mid-STG also anchor auditory association networks adjacent to the transverse temporal gyri (Heschl gyri) on the superior temporal plane, a relationship that often matters when explaining auditory hallucinations, temporal lobe epilepsy semiology, or surgical planning around the perisylvian cortex. Use this illustration in neuroanatomy and neurolinguistics teaching to locate the superior temporal gyrus quickly relative to the superior temporal sulcus and Sylvian fissure, and in clinical education pieces on middle cerebral artery stroke syndromes and aphasia localization. It also suits figure panels for radiology and neurosurgery texts that pair cortical surface landmarks with functional mapping or peri-Sylvian operative corridors. Anatomical accuracy verified by SciePro's Medical Advisory Board.