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 […]
Cerebral hemispheres (overview) Read More
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) The lateral sulcus, also referred to as the Sylvian fissure or lateral fissure, is
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. The Anatomy of the Insula The insular lobe or insula is one of the least understood regions of the brain(1). It is known
Insular Lobe (Insula) Read More
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). Magnetic resonance imaging (MRI)
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 Harnsberger HR, Osborn AG,
Sulcus, Gyrus, Interhemispheric fissure Read More
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
Parietooccipital sulcus (MRI) Read More
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 the occipital lobe by
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. Anatomy of the Occipital Lobe
At the level of the cerebral hemisphere, gray matter is mainly distributed in the periphery (cortex) while the white matter is deep. However, there is gray matter in depth of the brain called basal ganglia. In the brainstem, gray matter is usually found in the depth while the white matter is superficial. In the
MRI of the White and Gray Matter in the Brain Read More
The temporal lobe is located in the lower part of the cerebral hemispheres: Inferior to the frontal lobe and parietal lobe. The temporal lobe is separated from the frontal lobe by the lateral sulcus (or Sylvian fissure). Anterior to the occipital lobe. The temporal lobe is virtually continuous with the occipital lobe. Harnsberger HR,
