3- Medullary center (cerebral white mater) 1- Commisural fibers 2- Association fibers 3- Projecting fibers.

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Presentation transcript:

3- Medullary center (cerebral white mater) 1- Commisural fibers 2- Association fibers 3- Projecting fibers

Commisural fibers 1- Corpus callosum 2- Fornix 3- Anterior commissure 4- Posterior commisure 5- Habenula commissure

Corpus callosum

10cm

Corpus callosum ROSTRUM GENU BODY SPLENIUM

Different parts of corpus callosum  1- ROSTRUM  2- GENU  3- BODY  4- SPLENIUM

Corpus callosum

Fibers in different part of corpus callosum 1- rostrum orbital gyrus 2- genu frontal gyrus 3- body parietal and temporal gyrus 4- splenium occipital gyrus

Radiation of corpus callosum Forceps minor Forceps major

CONNECTION Tapetum

Gray mater on the corpus callosum

Deepest gyrus (intralimbic lobe) 1- paraterminal gyrus 2- indisium grisium (medial and lateral longituidinal stria) 3- gyrus fasciularis 4 - dentate gyrus 5- hippocampus

medial and lateral longituidinal stria

Fornix

Alveus Fimbria

Fornix 1- alveus 2- fimbria 3- posterior column (crus of fornix) 4- body 5- anterior column 6- pre and post commisural fibers Hippocampal commisure

Pre and post commisure fibers

Associating fibers Short A. Long A.

Long asssociation fibers  1- sup. Longituidinal Fasciculus  2- inf. Longituidinal Fasciculus  3- uncinate Fasciculus  4- cingulate Fasciculus

Projecting fibers 1- Internal capsule 2- External capsule 3- Extreme capsule

Different parts of internal capsule  1- Ant. Limb  2- Genu  3- Post. Limb  4- Retro-lentiform  5- Sub-lentiform