Arcuate fasciculus

Arcuate fasciculus

Infobox Brain
Name = PAGENAME
Latin = fasciculus arcuatus
GraySubject =
GrayPage =


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.


Caption2 =
IsPartOf =
Components =
Artery =
Vein =
BrainInfoType = ancil
BrainInfoNumber = 540
MeshName =
MeshNumber =
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.

ee 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


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • arcuate fasciculus — f. longitudinalis superior cerebri …   Medical dictionary

  • Arcuate — (Latin for curved ) can refer to: * Arcuate delta, a type of river delta * Arcuate fasciculus * Arcuate line * Arcuate nucleus * Arcuate nucleus (medulla) * Internal and external arcuate fibers of the brain * Arcuate arteries of the kidney *… …   Wikipedia

  • Fasciculus — can refer to: * nervous tissue ** Superior longitudinal fasciculus *** Arcuate fasciculus ** Dorsal longitudinal fasciculus ** Medial longitudinal fasciculus ** Flechsig s fasciculus * A structure in the wrist * Fasciculus Chemicus * Fasciculus… …   Wikipedia

  • Arcuate nucleus — This article is about the hypothalamic structure. For the structure in the medulla oblongata, see Arcuate nucleus (medulla). Brain: Arcuate nucleus Arcuate nucleus is AR , at bottom center, in green. Latin nucleus arc …   Wikipedia

  • fasciculus — 1. SYN: fascicle. 2. SYN: cord. 3. SYN: bundle. [L. dim. of fascis, bundle] f. anterior musculi palatopharyngei [TA] SYN: anterior fascicle of palatopharyngeus (muscle). anterior f. proprius [TA] SYN: fasciculi proprii …   Medical dictionary

  • fasciculus longitudinalis superior cerebri — [TA] superior longitudinal fasciculus of cerebrum: a bundle of association fibers in the cerebrum, extending from the frontal lobe to the posterior end of the lateral sulcus, and interrelating the cortex of the frontal, temporal, parietal, and… …   Medical dictionary

  • Occipitofrontal fasciculus — Brain: Occipitofrontal fasciculus Latin f. occipitofrontalis inferior Gray s subject #189 844 NeuroNames ancil 535 The occipitofrontal fasciculus passes backward from …   Wikipedia

  • Cuneate fasciculus — Fasciculus cuneatus Cuneate fasciculus is labeled in blue at upper right …   Wikipedia

  • Posterior external arcuate fibers — Diagram showing the course of the arcuate fibers. (Testut.) 1. Medulla oblongata anterior surface. 2. Anterior median fissure. 3. Fourth ventricle. 4. Inferior olivary nucleus, with the accessory olivary nuclei. 5. Gracile nucleus …   Wikipedia

  • Dorsal longitudinal fasciculus — Brain: Dorsal longitudinal fasciculus Latin fasciculus longitudinalis posterior; fasciculus longitudinalis dorsalis NeuroLex ID birnlex 986 The dorsal longitudinal fasciculus (DLF) (not to be confused with the medial longitudinal fasciculus, nor… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”