Commissural fibers (Corpus callosum, Anterior commissure, Posterior commissure, Commissure of fornix) BrainMaps is an NIH-funded interactive zoomable high-resolution digital brain atlas and virtual microscope that is based on more than 10 million megapixels (30 terabytes) of scanned images of serial sections of both primate and non-primate brains and that is integrated with a high-speed database for querying... Elseviers logo. ... For other uses, see Brain (disambiguation). ... The telencephalon (te-len-seff-a-lon) is the technical name for a large region within the brain which is attributed many functions, which some groups would class as unique features which make humans stand out from other species. ... Location of the cerebral cortex Slice of the cerebral cortex, ca. ... Human brain viewed from above, showing cerebral hemispheres. ... A sulcus (pl. ... The medial longitudinal fissure is the deep groove which separates the two hemispheres of the vertebrate brain. ... Lateral sulcus The lateral sulcus (also called Sylvian fissure or lateral fissure) is one of the most prominent structures of the human brain. ... Central sulcus of the human brain. ... Only a small part of the Parietoöccipital Fissure (or parieto-occipital sulcus) is seen on the lateral surface of the hemisphere, its chief part being on the medial surface. ... The calcarine fissure (or calcarine sulcus) is on the medial surface of the hemisphere. ... Categories: Stub | Cerebrum ... The callosal sulcus is a sulcus between the cingulate gyrus and corpus callosum, below the longitudinal cerebral fissure. ... The collateral fissure (or sulcus) is on the tentorial surface of the hemisphere and extends from near the occipital pole to within a short distance of the temporal pole. ... The frontal lobe is an area in the brain of mammals. ... The precentral gyrus (a. ... The primary motor area is a group of networked cells in mammalian brains that controls movements of specific body parts associated with cell groups in that area of the brain. ... Brodmann area 4 of human brain. ... Precentral sulcus of the human brain. ... Superior frontal gyrus of the human brain. ... This article or section is in need of attention from an expert on the subject. ... Categories: Stub | Cerebrum ... // Human Brodmann area 8, or BA8, is part of the frontal cortex in the human brain. ... Categories: Stub | Cerebrum ... Middle frontal gyrus of the human brain. ... // Where is it? Brodmann area 46, or BA46, is part of the frontal cortex in the human brain. ... Inferior frontal gyrus of the human brain. ... Categories: Stub | Cerebrum ... The Pars Opercularis is part of the inferior frontal gyrus and is part of the mirror neurons. ... Categories: Stub | Cerebrum ... The Pars triangularis is a portion of the inferior frontal gyrus. ... The orbitofrontal cortex (OFC) is a region of association cortex of the human brain involved in cognitive processes such as decision making. ... Categories: Stub | Cerebrum ... Categories: Stub | Cerebrum ... The term Brodmann area 12 refers to a subdivision of the cerebral cortex of the guenon defined on the basis of cytoarchitecture. ... Where is it? Brodmann area 47, or BA47, is part of the frontal cortex in the human brain. ... The parietal lobe is a lobe in the brain. ... The lateral postcentral gyrus is a prominent structure in the parietal lobe of the human brain and an important landmark. ... This page may meet Wikipedias criteria for speedy deletion. ... Brodmann area 40, or BA40, is part of the parietal cortex in the human brain. ... Brodmann area 5 is part of the parietal cortex in the human brain. ... The precuneus is a structure in the brain positioned above the cuneus and located in the parietal lobe. ... Categories: Stub | Cerebrum ... The superior parietal lobule is bounded in front by the upper part of the postcentral sulcus, but is usually connected with the posterior central gyrus above the end of the sulcus; behind it is the lateral part of the parietoöccipital fissure, around the end of which it is joined... Categories: Stub | Cerebrum ... The inferior parietal lobule (subparietal district or lobule) lies below the horizontal portion of the intraparietal sulcus, and behind the lower part of the postcentral sulcus. ... Brodmann area 40, or BA40, is part of the parietal cortex in the human brain. ... The angular gyrus is a region of the brain in the parietal lobe, that lies near the superior edge of the temporal lobe, and immediately posterior to the supramarginal gyrus; it is involved in a number of processes related to language and cognition. ... Categories: Stub | Cerebrum ... The lateral surface of the parietal lobe is cleft by a well-marked furrow, the intraparietal sulcus of Turner, which consists of an oblique and a horizontal portion. ... The marginal sulcus is the portion of the cingulate sulcus adjacent to the paracentral lobule and the precuneus. ... The occipital lobe is the visual processing center of the mammalian brain. ... Brodmann area 17 (primary visual cortex) is shown in red in this image which also shows area 18 (orange) and 19 (yellow) The visual cortex refers to the primary visual cortex (also known as striate cortex or V1) and extrastriate visual cortical areas such as V2, V3, V4, and V5. ... Cuneus (Latin for wedge; plural, cunei), the architectural term applied to the wedge-shaped divisions of the Roman theatre separated by the scalae or stairways; see Vitruvius v. ... The lingual gyrus of the occipital lobe lies between the calcarine fissure and the posterior part of the collateral fissure; behind, it reaches the occipital pole; in front, it is continued on to the tentorial surface of the temporal lobe, and joins the hippocampal gyrus. ... Categories: Stub | Cerebrum ... Brodmann area 19 is shown in yellow in this image which also shows ares 17 (red) and 18 (orange) Brodmann area 19, or BA19, is part of the occipital lobe cortex in the human brain. ... In the occipital lobe, the lateral occipital sulcus extends from behind forward, and divides the lateral surface of the occipital lobe into a superior and an inferior gyrus, which are continuous in front with the parietal and temporal lobes. ... The temporal lobes are part of the cerebrum. ... The primary auditory cortex is the region of the brain that is responsible for processing of auditory (sound) information. ... The primary auditory cortex the region of the brain which is responsible for processing of auditory (sound) information. ... The primary auditory cortex the region of the brain which is responsible for processing of auditory (sound) information. ... Superior temporal gyrus of the human brain. ... Categories: Stub | Cerebrum ... On the left side of the brain is an area called Brodmann’s area 22, that help generate and help the understanding of individual words, and on the right side of the brain it helps tell the difference between melody, pitch, and sound intensity. ... The location in the brain of the middle temporal gyrus Middle temporal gyrus is a gyrus in the brain on the Temporal lobe. ... Categories: Stub | Cerebrum ... Function of Inferior Temporal Gyrus The Inferior Temporal Gyrus, also known as Brocas area, carries out many tasks, and is mainly responsible for its task in phoenetical analysis for reading. ... Categories: Stub | Cerebrum ... The fusiform gyrus is part of the temporal lobe. ... Categories: Stub | Cerebrum ... The temporal lobes are part of the cerebrum. ... Look up Amygdala in Wiktionary, the free dictionary. ... The hippocampus is structurally located inside the medial temporal lobe of the brain. ... The parahippocampal gyrus (or hippocampal gyrus) is a grey matter cortical region of the brain that surrounds the hippocampus. ... The term area 27 of Brodmann-1909 refers to a cytoarchitecturally defined cortical area that is a rostral part of the PARAHIPPOCAMPAL GYRUS of the guenon (Brodmann-1909). ... // Guenon The term Brodmann area 28 refers to a subdivision of the cerebral cortex of the guenon defined on the basis of cytoarchitecture. ... You have new messages. ... // Human This area is known as perirhinal area 35, and it refers to a subdivision of the cytoarchitecturally defined hippocampal region of the cerebral cortex. ... This area is known as ectorhinal area 36, and it refers to a subdivision of the cytoarchitecturally defined temporal region of cerebral cortex. ... The cingulate cortex is a part of the brain situated in the medial aspect of the cortex. ... Cingulate gyrus is a gyrus in the medial part of the brain. ... Brodmann area 25 (BA25) is an area in the cerebral cortex of the brain and delineated based on its cytoarchitectonic characteristics. ... // Human Brodmann area 25 (BA25) is an area in the cerebral cortex of the brain and delineated based on its cytoarchitectonic characteristics. ... Grays FIG. 727– Medial surface of left cerebral hemisphere. ... 24 - ventral anterior cingulate (area cingularis anterior ventralis). ... The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ... This area is known as pregenual area 33, and it refers to a subdivision of the cytoarchitecturally defined cingulate region of cerebral cortex. ... The Cingulum is a collection of nerve fibres following a long, arcuate course superior to and around to posterior to the Corpus callosum. ... Brodmann area 23 (BA23) is a region in the brain corresponding to some portion of the posterior cingulate cortex. ... This area is known as dorsal posterior cingulate area 31, and it refers to a subdivision of the cytoarchitecturally defined cingulate region of cerebral cortex. ... The retrosplenial region is a brain area part of the cingular cortex. ... This article may be too technical for most readers to understand. ... This area is known as granular retrolimbic area 29, and it refers to a cytoarchitecturally defined portion of the retrosplenial region of the cerebral cortex. ... This area is known as agranular retrolimbic area 30, and it refers to a subdivision of the cytoarchitecturally defined retrosplenial region of the cerebral cortex. ... The supracallosal gyrus (indusium griseum; gyrus epicallosus) consists of a thin layer of gray substance in contact with the upper surface of the corpus callosum and continuous laterally with the gray substance of the cingulate gyrus. ... White matter is one of the two main solid components of the central nervous system. ... The corpus callosum is a structure of the mammalian brain in the longitudal fissure that connects the left and right cerebral hemispheres. ... The posterior end of the corpus callosum is the thickest part, and is termed the splenium. ... The anterior end of the corpus callosum is named the genu, and is bent downward and backward in front of the septum pellucidum; diminishing rapidly in thickness, it is prolonged backward under the name of the rostrum, which is connected below with the lamina terminalis. ... The anterior end of the corpus callosum is named the genu, and is bent downward and backward in front of the septum pellucidum; diminishing rapidly in thickness, it is prolonged backward under the name of the rostrum, which is connected below with the lamina terminalis. ... On either side of the corpus collosum, the fibers radiate in the white substance and pass to the various parts of the cerebral cortex; those curving forward from the genu into the frontal lobe constitute the forceps anterior, and those curving backward into the occipital lobe, the forceps posterior. ... The septum pellucidum, also called the septum lucidum, is a thin, triangular, vertical membrane that separates the lateral ventricles of the brain. ... Ependyma is the thin epithelial membrane lining the ventricular system of the brain and the spinal cord canal. ... The internal capsule is an area of white matter in the brain that separates the caudate nucleus and the thalamus from the lenticular nucleus. ... The corona radiata surround an ovum or unfertilized egg cell, and consist of two or three strata (layers) of follicular cells. ... The external capsule is a series of white matter fiber tracts in the brain. ... The olfactory tract is a narrow white band, triangular on coronal section, the apex being directed upward. ... The lateral portions of the body of the fornix are joined by a thin triangular lamina, named the psalterium (lyra). ... The Anterior Commissure (precommissure) is a bundle of white fibers, connecting the two cerebral hemispheres across the middle line, and placed in front of the columns of the fornix. ... The posterior commissure is a rounded band of white fibers crossing the middle line on the dorsal aspect of the upper end of the cerebral aqueduct. ... This article needs to be wikified. ... The basal ganglia (or basal nuclei) are a group of nuclei in the brain interconnected with the cerebral cortex, thalamus and brainstem. ... Coronal slices of human brain showing the basal ganglia, the striatum and pallidum globus pallidus: external segment (GPe), subthalamic nucleus (STN), globus pallidus: internal segment (GPi), and substantia nigra (SN). ... The putamen is a structure in the middle of the brain, forming the striatum together with the caudate nucleus. ... Grays Fig. ... The nucleus accumbens (NAcc), also known as the accumbens nucleus or as the nucleus accumbens septi (Latin for nucleus leaning against the septum), is a collection of neurons located where the head of the caudate and the anterior portion of the putamen meet just lateral to the septum pellucidum. ... The globus pallidus (Latin for pale body) is a sub-cortical structure in the brain. ... The claustrum is a thin layer of grey matter lying between the extreme capsule and external capsule in the brain. ... Coronal slices of human brain showing the basal ganglia, globus pallidus: external segment (GPe), subthalamic nucleus (STN), globus pallidus: internal segment (GPi), and substantia nigra (SN). ... The substantia nigra, (Latin for black substance, Soemering) or locus niger is a heterogeneous portion of the midbrain, separating the pes (foot) from the tegmentum (covering), and a major element of the basal ganglia system. ... The insular cortex (also often referred to as just the insula) is a structure of the human brain. ... The olfactory bulb is a structure of the vertebrate forebrain involved in olfaction, the perception of odors. ... The anterior olfactory nucleus is a cranial nucleus for the olfactory nerve. ... The septal nuclei are structures in the middle anteroventral cerebrum that are composed of medium-sized neurons and which are grouped into medial, lateral, and posterior groups. ... In the lateral part of the tuber cinereum is a nucleus of nerve cells, the basal optic nucleus of Meynert. ... A Brodmann area is a region in the brain cortex defined in many different species based on its cytoarchitecture. ... White matter is one of the two main solid components of the central nervous system. ... The association fibers unite different parts of the same hemisphere, and are of two kinds: (1) those connecting adjacent gyri, short association fibers; (2) those passing between more distant parts, long association fibers. ... The uncinate fasciculus passes across the bottom of the lateral fissure, and unites the gyri of the frontal lobe with the anterior end of the temporal lobe. ... The cingulum is a collection of white matter fibers projecting from the cingulate gyrus to the entorhinal cortex in the brain, allowing for communication between components of the limbic system. ... The superior longitudinal fasciculus (also called the superior longitudinal fascicle or SLF) is a pair of long bi-directional bundles of neurons connecting the front and the back of the cerebrum. ... Figure one illustrates significant language areas of the brain. ... The inferior longitudinal fasciculus connects the temporal lobe and occipital lobe, running along the lateral walls of the inferior and posterior cornua of the lateral ventricle. ... The occipitofrontal fasciculus passes backward from the frontal lobe, along the lateral border of the caudate nucleus, and on the mesial aspect of the corona radiata; its fibers radiate in a fan-like manner and pass into the occipital and temporal lobes lateral to the posterior and inferior cornua. ... The commissural fibers or transverse fibers connect the two hemispheres of the brain. ... The corpus callosum is a structure of the mammalian brain in the longitudal fissure that connects the left and right cerebral hemispheres. ... The Anterior Commissure (precommissure) is a bundle of white fibers, connecting the two cerebral hemispheres across the middle line, and placed in front of the columns of the fornix. ... The posterior commissure is a rounded band of white fibers crossing the middle line on the dorsal aspect of the upper end of the cerebral aqueduct. ... The lateral portions of the body of the fornix are joined by a thin triangular lamina, named the psalterium (lyra). ...