In the lateral part of the tuber cinereum is a nucleus of nerve cells, the basal optic nucleus of Meynert. Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ...
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The tuber cinereum is a hollow madda of gray substance situated between the corpora mammillaria behind, and the optic chiasma in front. ...
The basal nucleus of Meynert (NBM) is a group of nerve cells in the substantia innominata that has wide projections to the neocortex and is rich in acetylcholine and choline acetyltransferase. In Parkinson and Alzheimer diseases the nucleus undergoes degeneration. A decrease in acetylcholine production is seen in Alzheimer's disease, Lewy body dementia and some Parkinson Disease patients showing abnormal brain function, leading to a general decrease of mental capacity and learning. Most pharmacological treatments of dementia focus on compensating for a faltering NBM function through artificially increasing acetylcholine levels.
The primary concentration of cholinergic neurons/cell bodies that project to the neocortex are in the basal nucleus of Meynert which is located in the substantia innominata of the anterior perforated substance.
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An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy after Henry Gray, is an anatomy textbook widely regarded as a classic work on human anatomy. ...
Brain: telencephalon (cerebrum, cerebral cortex, cerebral hemispheres)
|Primary sulci/fissures ||Medial longitudinal, Lateral, Central, Parietoöccipital, Calcarine, Cingulate, Callosal |
|Frontal lobe ||Precentral gyrus (Primary motor cortex, 4), Precentral sulcus, Superior frontal gyrus (6, 8), Middle frontal gyrus (46), Inferior frontal gyrus (Broca's area, 44-Pars opercularis, 45-Pars triangularis), Prefrontal cortex (Orbitofrontal cortex, 9, 10, 11, 12, 47) - Gyrus rectus |
|Parietal lobe ||Postcentral sulcus, Postcentral gyrus (1, 2, 3, 43), Superior parietal lobule (5), Inferior parietal lobule (39-angular gyrus, 40), Precuneus (7), Intraparietal sulcus, Marginal sulcus |
|Occipital lobe ||Primary visual cortex (17), Cuneus, Lingual gyrus, 18, 19 (18 and 19 span whole lobe) - Lateral occipital sulcus |
|Temporal lobe ||Transverse temporal gyrus (41-42-Primary auditory cortex), Superior temporal gyrus (38, 22-Wernicke's area), Middle temporal gyrus (21), Inferior temporal gyrus (20), Fusiform gyrus (36, 37) |
|Limbic lobe/Fornicate gyrus ||Cingulate cortex/Cingulate gyrus, anterior cingulate (24, 32, 33), Posterior cingulate (23, 31), |
Isthmus (26, 29, 30), Parahippocampal gyrus (Piriform cortex, 25, 27, 35), Entorhinal cortex (28, 34) - Archicortex (Supracallosal gyrus)
|Subcortical/insular cortex ||Rhinencephalon, Olfactory bulb, Olfactory tract, Corpus callosum (Splenium, Genu, Rostrum, Tapetum), Lateral ventricles (Calcar avis), Septum pellucidum, Ependyma, Internal capsule, Corona radiata, External capsule, Fornix (Commissure of fornix), Anterior commissure, Posterior commissure |
|Hippocampal formation ||Dentate gyrus - Hippocampus - Alveus - Fimbria - Subiculum |
|Basal ganglia ||Striatum (Caudate nucleus, Putamen), Lentiform nucleus (Putamen, Globus pallidus), Claustrum, Extreme capsule, Amygdala, Nucleus accumbens |
|other ||Terminal stria - Paracentral lobule - Collateral fissure - Semioval center - Septal nuclei - Basal optic nucleus of Meynert |
|Some categorizations are approximations, and some Brodmann areas span gyri. |