Thursday, November 17, 2011

Parieto-occipital Sulcus

The parieto-occipital sulcus is a deep groove in the cerebral cortex, located near the posterior end of each hemisphere that separates the parietal lobes and the occipital lobes in both hemispheres. It begins on the external, lateral surface of the hemisphere and runs up for about 2 cm to the hemispheric border, and then travels down and forward on the medial (internal) surface, ending up under the posterior end of the corpus callosum. Along the way the parieto-occipital sulcus meets the calcarine fissure, forming the lingual gyrus below.

Parieto-occipital Sulcus on the internal (medial) surface of the brain hemisphere