Cerebral cortex
,• There are 3 types: WHITE MATTER OF
• 1- Association fibers: CEREBRAL HEMISPHERE
• Interconnect cortical sites
lying within one hemisphere.
• They are short or long fibers .
• 2- Commissural fibers:
• Connecting functionally
related gyri on both
hemisphere.
• 3- Projection fibers:
• Connecting the cortex with
the lower centers in thalamus
brain stem, or spinal cord.
• They are ascending or
descending.
,• A- Short association fibers:
• Connect nearer gyri on the same Association fibers
hemisphere.
• B- Long association fibers:
• Connect distant gyri on the same
hemisphere.
• Example:
• 1-Superior longitudinal fasciculus:
• Connects the frontal & occipital
lobes.
• It lies above the insula.
• It has a subsidiary bundle known as
arcuate fasciculus, which connects
the frontal & temporal lobes.
• It is important for language
function
,
,• There are 3 types: WHITE MATTER OF
• 1- Association fibers: CEREBRAL HEMISPHERE
• Interconnect cortical sites
lying within one hemisphere.
• They are short or long fibers .
• 2- Commissural fibers:
• Connecting functionally
related gyri on both
hemisphere.
• 3- Projection fibers:
• Connecting the cortex with
the lower centers in thalamus
brain stem, or spinal cord.
• They are ascending or
descending.
,• A- Short association fibers:
• Connect nearer gyri on the same Association fibers
hemisphere.
• B- Long association fibers:
• Connect distant gyri on the same
hemisphere.
• Example:
• 1-Superior longitudinal fasciculus:
• Connects the frontal & occipital
lobes.
• It lies above the insula.
• It has a subsidiary bundle known as
arcuate fasciculus, which connects
the frontal & temporal lobes.
• It is important for language
function
,
