lateral sulcus (Sylvian fissure)

Structure

• the deepest & most prominent of the cerebral sulci
• it divides the frontal lobe & temporal lobe & parietal lobe & temporal lobe of the cerebral cortex.
• it extends from the anterior perforated substance laterally at the deep incisure between the frontal lobe & temporal lobe, then caudally & dorsally over the lateral aspect of the cerebral hemisphere on either side
• the superior temporal gyrus forms its lower bank
• the insula, its floor & the frontal operculum & lateral operculum form its upper banks

More general terms

• sulcus