White Matter tracts

Question 1

What is cerebral white matter responsible for?

Answer 1

communication

Question 2

What does white matter consist of?

Answer 2

myelinated axons bundled into large tracts

Question 3

What are the three types of white matter tracts?

Answer 3

projection tracts
association tracts
commissural tracts

Question 4

projection tracts

Answer 4

these extend vertically from brain to spinal cord forming the internal capsule

Question 5

commissural tracts

Answer 5

cross from one hemisphere to the other

Question 6

corpus callosum

Answer 6

a wide band of myelinated axons tracts

Question 7

what is the structure of the corpus callosum (posteriorly to anteriorly)

Answer 7

• splenium: projects to temporal and occipital lobes
• body: projects to the frontal and parietal lobes
• genu: projects to anterior parts of the frontal lobe
• rostrum

Question 8

split-brain

Answer 8

corpus callosum transection. it is a form of treatment in patients with severe epilepsy, as it helps to prevent the seizure to travel across the corpus callosum

Question 9

anterior commissure

Answer 9

includes axons that connect the middle and inferior temporal gyro of the two sides

Question 10

association fibers

Answer 10

connect lobes and gyri within the hemisphere