Transverse Temporal Sulci Of The Human Brain, Lateral View

Description

Transverse temporal sulci (sulci temporales transversi) are delineated on the superior aspect of the temporal lobe as narrow grooves separating the transverse temporal gyri (gyri temporales transversi, Heschl gyri). In this lateral perspective, the sulci are positioned deep to the lateral sulcus (fissura lateralis) within the superior temporal plane, with the overlying frontal and parietal opercula providing the familiar lateral contour of the hemisphere. The superior temporal gyrus forms the lateral margin, while the transverse gyri course mediolaterally toward the insular region and circular sulcus. A compact cluster of landmarks. These sulci matter because they bracket primary auditory cortex (Brodmann area 41) and guide orientation within the perisylvian region when teaching auditory pathways, language lateralization, and hemispheric asymmetry of the planum temporale. For epilepsy workups and temporal lobe surgical planning, correctly identifying Heschl’s gyrus and its bounding sulci helps describe lesion location (focal cortical dysplasia, low-grade glioma) relative to the superior temporal plane and to the lateral sulcus, where operative corridors and retraction risks concentrate. The fixed lateral viewpoint supports side-by-side correlation with clinical MRI descriptions that reference the opercula, Sylvian fissure, and superior temporal gyrus as external landmarks while the transverse temporal anatomy remains partially concealed in vivo. Use this illustration in neuroanatomy and neuroscience coursework when introducing the auditory cortex, in otology and neurology teaching files for perisylvian localization, and in medical publishing graphics that need accurate sulcal nomenclature without relying on a superior or coronal-only presentation. It also suits figure plates discussing temporal lobe epilepsy, cortical mapping, or interindividual variation in transverse temporal gyrification. Anatomical accuracy verified by SciePro's Medical Advisory Board.