Parieto-occipital sulcus

Parieto-occipital sulcus
Fig. 726: Lateral surface of left cerebral hemisphere, viewed from the side.
Fig. 727: Medial surface of left cerebral hemisphere.
Details
Identifiers
Latin	sulcus parietooccipitalis, fissura parietooccipitalis
NeuroNames	52
NeuroLex ID	birnlex_1428
TA98	A14.1.09.108
TA2	5437
FMA	83754
Anatomical terms of neuroanatomy [edit on Wikidata]

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.

Function

The parieto-occipital lobe has been found in various neuroimaging studies, including PET (positron-emission-tomography) studies,^[1][2][3][4] and SPECT (single-photon emission computed tomography) studies,^[5][6] to be involved along with the dorsolateral prefrontal cortex during planning.

Gallery

• 
  Animation of left cerebral hemisphere. Parieto-occipital sulcus shown in red.
• 
  Medial surface of right hemisphere. Parieto-occipital sulcus labeled at top right as "*"
• 
  Medial surface of left hemisphere. Parieto-occipital sulcus visible at top left.
• Human brain dissection video (1 min 52 sec). Demonstrating location of parieto-occipital sulcus of left cerebral hemisphere.

References

This article incorporates text in the public domain from page 820 of the 20th edition of Gray's Anatomy (1918)

External links

Wikimedia Commons has media related to Parieto-occipital sulcus.