Superior Frontal Gyrus Of The Brain, Lateral View

Description

Superior frontal gyrus occupies the dorsalmost portion of the frontal lobe on the lateral cerebral surface, extending anteriorly toward the frontal pole and posteriorly toward the precentral region. In this lateral view it sits superior to the superior frontal sulcus, with the middle frontal gyrus positioned inferolateral to it, and its posterior extent approaching the precentral sulcus and central sulcus region. Superiorly, the gyrus meets the superomedial margin of the hemisphere where the interhemispheric fissure begins, while inferiorly the contour transitions toward the lateral convexity above the opercular region. Key neighboring landmarks. Portions of the superior frontal gyrus correspond to dorsolateral prefrontal cortex (commonly Brodmann areas 9 and 10), an area discussed in executive dysfunction from traumatic brain injury, frontal lobe tumors, and degenerative syndromes such as behavioral variant frontotemporal dementia. Posterior superior frontal cortex contributes to the frontal eye field region (often BA8), a practical correlation when teaching saccadic control and when localizing deficits such as contralateral gaze deviation or impaired voluntary eye movements after stroke. The fixed lateral perspective helps clarify how the superior frontal gyrus relates to the superior frontal sulcus and the posterior frontal landmarks that guide neurosurgical corridor planning, since sulcal boundaries often define safe entry zones and help avoid eloquent cortex during a dorsolateral frontal craniotomy. Common use cases include gross neuroanatomy labs, neuropsychology lectures linking prefrontal networks to behavior, and figure plates for neurology or neurosurgery texts discussing frontal lobe lesion localization, cortical mapping, or transcranial magnetic stimulation target selection over dorsolateral prefrontal cortex. It also reads well in patient education materials when explaining why a “frontal lobe” finding on MRI maps to specific gyri and sulci. Anatomical accuracy verified by SciePro's Medical Advisory Board.