Parieto-occipital sulcus

In neuroanatomy, the parieto-occipital sulcus (also called the parieto-occipital fissure) is a deep sulcus in the cerebral cortex that marks the boundary between the cuneus and precuneus, and also between the parietal and occipital lobes. Only a small part can be seen on the lateral surface of the hemisphere, its chief part being on the medial surface. The lateral part of the parieto-occipital sulcus (Fig. 726) is situated about 5 cm in front of the occipital pole of the hemisphere, and measures about 1.25 cm. in length. The medial part of the parieto-occipital sulcus (Fig. 727) runs downward and forward as a deep cleft on the medial surface of the hemisphere, and joins the calcarine fissure below and behind the posterior end of the corpus callosum. In most cases, it contains a submerged gyrus. The parieto-occipital lobe has been found in various neuroimaging studies, including PET (positron-emission-tomography) studies, and SPECT (single-photon emission computed tomography) studies, to be involved along with the dorsolateral prefrontal cortex during planning. File:Parieto-occipital sulcus animation small.gif|Animation of left [[cerebral hemisphere]]. Parieto-occipital sulcus shown in red. File:LobesCaptsMedial1.png|Medial surface of right hemisphere. Parieto-occipital sulcus labeled at top right as "*" File:Human Brain Dissected.jpg|Medial surface of left hemisphere. Parieto-occipital sulcus visible at top left. File:Cerebral Hemisphere Demonstration - Sanjoy Sanyal - Neuroscience Lab Fall 2013 (cropped from 2m36s to 4m40s) - Parietooccipital sulcus.webm|Human brain dissection video (1 min 52 sec). Demonstrating location of parieto-occipital sulcus of left cerebral hemisphere.