Parieto-occipital sulcus

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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
Latinsulcus parietooccipitalis, fissura parietooccipitalis
NeuroNames52
NeuroLex IDbirnlex_1428
TA98A14.1.09.108
TA25437
FMA83754
Anatomical terms of neuroanatomy

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.
    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 right hemisphere. Parieto-occipital sulcus labeled at top right as "*"
  • Medial surface of left hemisphere. Parieto-occipital sulcus visible at top left.
    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

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

  1. ^ Owen, Adrian M.; Doyon, Julien; Petrides, Michael; Evans, Alan C. (1996). "Planning and Spatial Working Memory: a Positron Emission Tomography Study in Humans". European Journal of Neuroscience. 8 (2): 353–364.
    S2CID 21770063
    .
  2. . Retrieved 18 June 2014.
  3. .
  4. . Retrieved 18 June 2014.
  5. . Retrieved 18 June 2014.
  6. .

External links