Arcuate fasciculus
1023108
214645299
2008-05-24T15:46:32Z
76.238.10.86
/* Function */
{{Infobox Brain|
Name = {{PAGENAME}} |
Latin = fasciculus arcuatus |
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Image = Brain Surface Gyri.SVG |
Caption = 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]]. |
Image2 = |
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Components = |
Artery = |
Vein = |
BrainInfoType = ancil |
BrainInfoNumber = 540 |
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DorlandsPre = f_03 |
DorlandsSuf = 12355817 |
}}
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]] and is now considered as part of the [[Superior longitudinal fasciculus]].
==Function==
In the dominant hemisphere (usually the left), this pathway is thought to connect [[Wernicke's area]] and [[Broca's area]]. The function of the arcuate fasciculus of the nondominant hemisphere is very little studied.
It is thought to connect areas of the brain involved in the generation and understanding of [[language]].
==Pathology==
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.
==See also==
* [[aphasia]]
==External links==
* http://www.lib.mcg.edu/edu/eshuphysio/program/section8/8ch15/s8c15_14.htm
* http://thebrain.mcgill.ca/flash/d/d_10/d_10_cr/d_10_cr_lan/d_10_cr_lan.html
* http://brain.oxfordjournals.org/cgi/reprint/awh622v1.pdf
{{White matter}}
[[Category:Cerebrum]]
[[Category:Neuroanatomy]]
[[Category:Central nervous system pathways]]
[[de:Fasciculus arcuatus]]
[[ja:弓状束]]