Intraparietal Sulcus
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I'd like to isolate the intraparietal sulcus
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in the axial projection. There it is.
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If we cross-reference that arcuate-shaped structure
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in the sagittal projection, there it is.
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There is our intraparietal sulcus,
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which is arcuate or horseshoe-shaped,
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in the sagittal projection.
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It's a nice localization because anterior
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to it is the central sulcus of Rolando.
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So it helps you find the central sulcus and the
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postcentral gyrus right in front of it.
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The intraparietal sulcus separates the parietal lobule
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into a superomedial, superoparietal lobule,
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and an inferolateral inferior parietal lobule.
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The inferior parietal lobule consists of,
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in the sagittal projection,
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the superomarginal gyrus around the Sylvian
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fissure and the angular gyrus,
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which sits around the superior temporal sulcus.
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These two form the inferior parietal lobule.
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They kind of make a little bit of a horseshoe shape around
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these two structures.
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One there and one there.
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The inferior parietal lobule.
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So in the axial projection,
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behind the central sulcus of Rolando,
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the intraparietal sulcus,
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dividing up the superior and inferior parietal lobule.
Stephen J Pomeranz, MD
Chief Medical Officer, ProScan Imaging. Founder, MRI Online
ProScan Imaging
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