lateral fissure
Acronym: ls
The term lateral fissure refers to the major groove that separates the superior temporal gyrus of the temporal lobe from the frontal lobe rostrally and the parietal lobe caudally. It is found in the human ( Carpenter-1983 ) and the macaque ( Martin-2000 ). It overlies the insula, which is exposed by retraction of its dorsal and ventral walls.
     In the human it is divided into the stem of the lateral fissure rostrally, the posterior limb of the lateral fissure (the central and major portion) and, at the caudal end, the terminal ascending limb of the lateral fissure and the terminal descending limb of the lateral fissure. It has four side branches into the frontal lobe: the anterior horizontal limb of the lateral fissure, the anterior ascending limb of the lateral fissure, and the anterior subcentral sulcus. It has one branch into the parietal lobe: the posterior subcentral sulcus; and one branch into the superior temporal gyrus: the transverse temporal sulcus ( Ono-1990 ).
     In the macaque it is not subdivided and does not have side branches. Equivalent structures are not found in the smooth cerebral cortex of the rat or mouse ( NeuroNames ).

Also known as: fissure of Sylvius, lateral cerebral fissure, lateral sulcus, Sylvian fissure, Sylvian sulcus, Fissura lateralis, Sulcus lateralisNeuroNames ID : 49

Species Having or Lacking this Structure

All Names & Sources

Internal Structure

Cells Found There

Genes Expressed There

Locus in Brain Hierarchy


Models Where It Appears

Publications About It

BrainInfo                           Copyright 1991-present                          University of Washington