Figure one illustrates significant language areas of the brain. The arcuate fasciculus links the green area (Wernicke's) to the blue area (Broca's), disruption of this pathway results in conduction aphasia . The arcuate fasciculus (Latin, curved bundle ) is the neural pathway connecting the posterior part of the temporoparietal junction with the frontal cortex in the brain . In the cerebral hemisphere specialised for language, this pathway is thought to connect Broca's area to Wernicke's area .
It is thought to connect areas of the brain involved in the generation and understanding of language . Damage to this pathway can cause a form of aphasia known as conduction aphasia , where auditory comprehension and speech articulation are preserved, but people find it difficult to repeat heard speech.
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Telencephalon cerebral cortex , cerebral hemispheres ) - edit
primary sulci/fissures :medial longitudinal , lateral , central , parietoöccipital , calcarine , cingulate
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 )
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
occipital lobe :primary visual cortex (17), cuneus , lingual gyrus , 18 , 19 (18 and 19 span whole lobe)
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 )
subcortical/insular cortex rhinencephalon , olfactory bulb , corpus callosum , lateral ventricles , septum pellucidum , ependyma , internal capsule , corona radiata , external capsule
hippocampal formation :dentate gyrus , hippocampus , subiculum
basal ganglia : striatum (caudate nucleus , putamen ), lentiform nucleus (putamen , globus pallidus ), claustrum , extreme capsule , amygdala , nucleus accumbens
Some categorizations are approximations, and some Brodmann areas span gyri.
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Papez circuit
Brain
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Nigrostriatal pathway
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