white matter Flashcards
White matter fibers convey
Signals to and from the cortex
projection
To the cortex and cortical structures
commissural
Between hemispheres
association
Within hemispheres or within the cortex
projection fibers
ascending- subcortical structures to cerebral cortex
descending- cortex to spinal cord, brainstem, basal ganglia, thalamus
projection fibers travel through
internal capsule
-anterior limb
-genu
-posterior limb
anterior limb
corticopontine fibers, thalamus to limbic area
genu
CN motor nuclei to reticular formation
posterior limb
corticospinal and thalamocortical projections
carries somatosensory, visual, auditory, motor info to cerebral cortex
comissural fibers
prefrontal cortex
premotor cortex
primary motor cortex
primary somatosensory cortex
posterior parietal cortex
occipital lobe
temporal lobe
association fibers
short- between gyri
long- between lobes