Supramarginal gyrus

The supramarginal gyrus is a convolution ( gyrus ) in the cerebral cortex and is located in two cerebral halves at the junction of parietal, temporal and occipital lobes, but is attributed to the parietal lobe. It wraps around the rear end of the Sylvian fissure.

Histology

Histologically, it corresponds to Brodmann 's area 40

Topology

Frontal gyrus supramarginal is the essential for the understanding of speech Wernicke's area. Dorsal is the angular gyrus, parietal ( vertex down) of the inferior parietal lobule.

Function

The damage to the supramarginal gyrus of the language-dominant hemisphere of the brain can lead to Gerstmann 's syndrome.