cerebellum small brain fissures of cerebellum
Post on 21-Dec-2015
246 views
TRANSCRIPT
CerebellumCerebellum
Small brainSmall brain
Fissures of cerebellum
Lobules of Superior vermis
1-lingula 2-central 3-culmen 4-declive 5-foilum
Lobules of inferior vermis
1-tuber 2-pyramid 3-uvula 4-nodule
Lobules of Superior vermis and hemisphere
1-lingula 2-central…………..Ala 3-culmen………….quadrangular 4-declive…………..simplex 5-foilum……………superior semilunar
Lobules of inferior vermis and hemisphere
1-tuber…………..inferior semilunar 2-pyramid………biventral 3-uvula………….tonsile 4-nodule………..floculus
Fissures of cerebellum
1- primary fissure 2- horizontal fissure 3- postrolateral fissure
Division of cerebellumDivision of cerebellum
Based on morphologyBased on morphology
1- anterior lobe1- anterior lobe
2- middle/posterior lobe2- middle/posterior lobe
3-floculonodular3-floculonodular
Division of cerebellumDivision of cerebellum
Based on developmentBased on development
1- Archiocerebellum (lingula + floculonodular).1- Archiocerebellum (lingula + floculonodular).
2- Paleocerebellum(ant. Lobe – lingula + pyramid 2- Paleocerebellum(ant. Lobe – lingula + pyramid and uvula)and uvula)
3-neocerebellum( post. Lobe – pyramid and uvula).3-neocerebellum( post. Lobe – pyramid and uvula).
Division of cerebellumDivision of cerebellum
Based on physiologyBased on physiology
1- vestibulocerebellum1- vestibulocerebellum
2- spinocerebellum2- spinocerebellum
3-pontocerebellum3-pontocerebellum
Cross section of cerebellum
Gray mater 1- cortex 2-deep nuclei (intracrebellar nuclei)
White mater 1- lamina alba 2- corpus medullaris
Corpus medullaris
1- proper fibers ( association and commisural)
2- projecting fibers (cerebellar peduncles)