See Also: fissura parietooccipitalis(medicine)
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fissura(medicine)
fissura antitragohelicina(medicine)
fissura petrotympanica(medicine)
fissura petrosquamosa(medicine)
fissura pterygopalatina(medicine)
fissura calcarina(medicine)
fissura choroidea(medicine)

fissura parietooccipitalis (medicine)


fissura parietooccipitalis -->
parieto-occipital sulcus


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.