Anatomic specimen. Anatomic specimen. Superior surface of the brain after removal of the pia-arachnoid and surface vasculature. Note the positions, alignments,

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Normal Cortical Anatomy

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Topography of the Cerebral Hemispheres. Surface structures The surface of the brain has complicated folding which substantially increases the surface.

BRIEF INTRO TO CORTICAL NEUROANATOMY

Top: Dorsal photograph of Einstein’s brain with original labels.

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2 Central Sulcus - separates parietal and frontal lobes

The Central Nervous System

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CEREBRUM Dr. Jamila EL Medany.

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Patient with cholesteatoma on the right and chronic otitis media without cholesteatoma on the left. Patient with cholesteatoma on the right and chronic.

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A, Sagittal T2WI MR image demonstrates a focal dorsal indentation (arrow) in the thoracic spinal cord. A, Sagittal T2WI MR image demonstrates a focal dorsal.

A, T2WI MR image demonstrates a focal dorsal indentation in the upper thoracic spinal cord (arrow). A, T2WI MR image demonstrates a focal dorsal indentation.

Slice no. 5. Slice no. 5. T2-weighted coronal image (20/9.2/12) at the level of the temporal horns (33 weeks' gestation). Large arrow, cingulate sulcus;

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Cerebral Cortex.

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Patient 16: gestational-week fetus.

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Case 2. Case 2. A, Coronal unenhanced T1-weighted image through the base of the skull. The left pterygopalatine fossa appears infiltrated by soft tissue.

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Presentation transcript:

Anatomic specimen. Anatomic specimen. Superior surface of the brain after removal of the pia-arachnoid and surface vasculature. Note the positions, alignments, and interrelationships among the gyri: superior frontal gyrus (1), middle frontal gyrus (2), precentral gyrus (4), postcentral gyrus (5), pars deflection (dashed curve), superior parietal lobule (large black S), inferior parietal lobule (I), and superior occipital gyrus (large O), and among the sulci: superior frontal sulcus (a), precentral sulcus (c), central sulcus (d), postcentral sulcus (e), including the medial parentheses (also e), pars marginalis (arrowheads), intraparietal sulcus (g), subparietal sulcus (small white s), parietooccipital sulcus (w), and intraoccipital sulcus (small o). Note the notch (arrow) in the precentral sulcus anterior to the hand-motor area, the sharp inscription of the central sulcus just medial to the knob (asterisks) of the hand-motor area, the medial positions of the pars marginalis, SPS and POS, the nesting of the pars deflection (dashed curve) between the pars marginalis (arrowheads) and the postcentral parenthesis (e) on each side, and the convergence of the posterior portions of the IPS toward the parasagittal line Thomas P. Naidich et al. AJNR Am J Neuroradiol 2001;22:885-895 ©2001 by American Society of Neuroradiology