What is arcuate fasciculus and what damage can it cause?

The arcuate fasciculus connects these two regions. The classical explanation for conduction aphasia is that damage to the arcuate fasciculus impairs the transmission of information between the Wernicke area and the Broca area. This injury leads to impaired repetition.

What happens if arcuate fasciculus is damaged?

People with damage to the arcuate fasciculus retain the motor ability of the Broca’s area and the understanding of the Wernicke’s area, but they can’t put the two together. This results in an ability to understand language but an inability to respond properly to it.

Is the arcuate fasciculus white matter?

The arcuate fasciculus (AF) is the white matter tract arching (hence the name arcuate) around the end of the Sylvian fissure to connect the posterior temporal region of the brain with specific parts of the frontal lobe.

What the fasciculus is?

Medical Definition of fasciculus : a slender bundle of fibers: a : a bundle of skeletal muscle cells bound together by fasciae and forming one of the constituent elements of a muscle.

Why is the arcuate fasciculus important?

The arcuate fasciculus connects two important areas for language use, Broca’s area and Wernicke’s area. The arcuate fasciculus (AF) is a bundle of axons that generally connects the Broca’s area and the Wernicke’s area in the brain.

What role does the arcuate fasciculus play in language production and processing?

28.3 The Network Topology of the Language Cortex. The classical model has given the arcuate fasciculus a central role in connecting the language-relevant parts of the brain. This was based on the idea that Broca’s area and Wernicke’s area were the two central nodes in the language network.

Where is the Uncinate fasciculus?

The uncinate fasciculus is a white matter association tract in the human brain that connects parts of the limbic system such as the temporal pole, anterior parahippocampus, and amygdala in the temporal lobe with inferior portions of the frontal lobe such as the orbitofrontal cortex.

What lobe is arcuate fasciculus?

The arcuate fasciculus is a bundle of axons that connects the temporal cortex and inferior parietal cortex to locations in the frontal lobe. One of the key roles of the arcuate fasciculus is connecting Broca’s and Wernicke’s areas, which are involved in producing and understanding language.

What is the arcuate fasciculus made of?

fiber bundles
The arcuate fasciculus is a neural pathway compiled of fiber bundles that extend anteriorly from the posterior portion of the temporal lobe to the posterior region of the inferior prefrontal lobe, thereby linking the expressive (i.e., Broca’s area) and receptive (i.e., Wernicke’s area) language centers of the cortex [2 …

Is the arcuate fasciculus part of the SLF?

The SLF has been described as being composed of four layers with the arcuate fasciculus being the lateral part of this tract, the arcuate fasciculus, and the SLF I, SLF II, and SLF III.

What supplies the arcuate fasciculus?

The arcuate fasciculus (AF) is a bundle of axons that generally connects the Broca’s area and the Wernicke’s area in the brain….

What is Uncinate fasciculus fasciculus and Cingulum?

Uncinate fasciculus: temporal pole to motor speech area and orbital cortex. 2. Cingulum fasciculus: cingulum gyrus to parahippocampal gyrus. 3. Superior longitudinal fasciculus: frontal to occipital and temporal lobes.