Regions of the Brain

Frontal Lobe

The frontal lobe is located in the anterior part of the cerebral hemispheres: • Anterior to the parietal lobe. (The frontal lobe is separated from the parietal lobe by the central sulcus (of Rolando)). • Superior to the . (The frontal lobe is separated from the by the lateral fissure of Sylvius). Reference: • Harnsberger …

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Insular lobe (Insula)

The Insular lobe (nsula) is located in depth of Sylvian fissure. The cortex of the insula is covered by frontal operculum, parietal operculum and temporal operculum. The insula has five gyri.

Sulcus, Gyrus, Interhemispheric fissure

Gyrus (plural gyri) is a ridge on the cerebral cortex. Sulcus (plural sulci) is a groove that separates gyri. The cerebral hemispheres are separated by a median cleft: the inherhemispheric fissure (great longitudinal fissure). The falx cerebri (cerebral falx) is a fold of dura mater which lies within inherhemispheric fissure Reference: • Harnsberger HR, Osborn …

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Lateral sulcus (Sylvian fissure)

The lateral sulcus (Sylvian fissure) separates the frontal lobe (superior) from the temporal lobe (inferior). The insula lobe is located in depth of the lateral sulcus and is covered by the cortex from the frontal lobe, temporal and parietal (operculum) Reference • Harnsberger HR, Osborn AG, Ross JS, Moore KR, Salzman KL, Carrasco CR, Halmiton …

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Cerebral hemispheres (overview)

The brain can be divided into left and right cerebral hemispheres. Each cerebral hemisphere is divided into six sections, called “lobes”: frontal lobe, parietal lobe, temporal and occipital lobe; plus two other that are not visible from outside: Insula and limbic lobe. To locate these different lobes of the brain, a 3D reconstruction was made​ …

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Central sulcus (fissure of Rolando)

The central sulcus (fissure of Rolando) separates the frontal lobe (anterior) from the parietal lobe (posterior). The location of the central sulcus is made by finding the intersection of the superior frontal sulcus with the precentral sulcus on axial slices near the top: see figure 8. Reference • Harnsberger HR, Osborn AG, Ross JS, Moore …

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Parietooccipital sulcus (MRI)

Parietooccipital sulcus separates partially the parietal lobe from occipital lobe in his medial part. Parietooccipital sulcus delimits the precuneus (parietal lobe) from the cuneus (occipital lobe). Bibliographie: • Harnsberger HR, Osborn AG, Ross JS, Moore KR, Salzman KL, Carrasco CR, Halmiton BE, Davidson HC, Wiggins RH. Diagnostic and Surgical Imaging Anatomy: Brain, Head and Neck, …

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Parietal Lobe

The parietal lobe is located in the upper part of the cerebral hemispheres: • posterior to the frontal lobe • superior to the temporal lobe • the parietal lobe is partially separated from the temporal lobe by the Sylvian fissure (lateral sulcus). • Anterior to the occipital lobe. • The parietal lobe is separated from …

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Occipital Lobe

The occipital lobe is located in the posterior part of the cerebral hemispheres: • posterior to the temporal lobe and parietal lobe • the occipital lobe is partially separated from the parietal lobe by the parietooccipital fissure. • In addition, there is only virtual separation between the temporal lobe and occipital lobe. Reference • Harnsberger …

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