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Definition of Parieto-occipital sulcus
1. Noun. A sulcus near the posterior end of each hemisphere that separates the parietal lobes and the occipital lobes in both hemispheres.
Medical Definition of Parieto-occipital sulcus
1. A very deep, almost vertically oriented fissure on the medial surface of the cerebral cortex, marking the border between the parietal lobe and the cuneus of the occipital lobe; its lower part curves forward and fuses with the anterior extent of the calcarine fissure (sulcus calcarinus); the great depth of this combined fissure causes a bulge in the medial wall of the occipital horn of the lateral ventricle, the calcar avis. Synonym: sulcus parieto-occipitalis, fissura parietooccipitalis, parieto-occipital fissure. (05 Mar 2000)
Lexicographical Neighbors of Parieto-occipital Sulcus
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