the great majority of commissural fibers tracts pass through the corpus callosum.
the great majority of commissural fibers tracts pass through the corpus callosum.
the great majority of which tracts pass through the corpus callosum?
commissural fibers
the cingulum is a major association tract. the cingulum forms the white matter core of the cingulate gyrus and links from this to the entorhinal cortex.









































section::::categories.:commissural fibers.









































commissural tracts connect corresponding cortical areas in the two hemispheres. they cross from one cerebral hemisphere to the other through bridges called commissures. the great majority of commissural tracts pass through the corpus callosum. a few tracts pass through the much smaller anterior and posterior commissures. commissural tracts enable the left and right sides of the cerebrum to communicate with each others.









































section::::categories.:projection fibers.
nerve tract
age-related decline in the commissural fiber tracts that make up the corpus callosum indicate the corpus callosum is involved in memory and executive function. specifically, the posterior fibers of the corpus callosum are associated with episodic memory. perceptual processing decline is also related to diminished integrity of occipital fibers of the corpus callosum. evidence suggests that the genu of the corpus callosum does not contribute significantly to any one cognitive domain in the elderly. as fiber tract connectivity in the corpus callosum declines due to aging, compensatory mechanisms are found in other areas of the corpus callosum and frontal lobe. these compensatory mechanisms, increasing connectivity in other parts of the brain, may explain why elderly individuals still display executive function as a decline of connectivity is seen in regions of the corpus callosum.
commissural fiber