Internal capsule

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  • 1. INTERNAL CAPSULE
    AMUTHAMEENA MANOHARAN
    THIAGGU PALAN
    JAYAGANTHAN MANAUGAR
    MOHD ZAHIR

2. HIGHLIGHTS
INTRODUCTION
PARTS OF INTERNAL CAPSULE
BLOOD SUPPLY
3. White Matter of Cerebral hemisphere
Association tracts (fibers)- different regions in cerebral cortex
Projection tracts (fibers)- cerebral cortex other masses of gray matter
Commissures fibers- RL
4. This is a compact bundle of fibres through which the large collections of fibres pass
5. Parts of internal capsule
ANTERIOR LIMB
- Caudate nu. & lentiform nu.
GENU
POSTERIOR LIMB
- Thalamus & lentiform nu.
RETROLENTIFORM
SUBLENTIFORM
6. COMPONENTS
ANTERIOR LIMB
Anterior thalamic radiation
Frontopontine
GENU
Part of superior thalamic radiation
Frontopontine
Corticonuclear
POSTERIOR LIMB
Superior thalamic radiation
Frontopontine
Corticonuclear (corticobulbar)
Corticospinal
Extrapyrimidal
RETROLENTIFORM
Post thalamic radiation - Optic radiation
Parieto-pontine
Temporo-pontine
SUBLENTIFORM
Inf thalamic radiation - Auditory radiation
7. Connections:
ANTERIOR LIMB
Anterior thalamic radiation
Frontopontine
GENU
Part of superior thalamic radiation
Frontopontine
Corticonuclear

  • RETROLENTIFORM

8. Optic radiation 9. Parieto-pontine 10. Temporo-pontine 11. SUBLENTIFORM 12. Auditory radiationPOSTERIOR LIMB
Superior thalamic radiation
Frontopontine
Corticonuclear (corticobulbar)
Corticospinal
Extrapyrimidal
Thalamocorticalfibres
Corticopontinefibres
Corticonuclear &
corticospinalfibres
13. Blood Supply
14. Lateral striate fr middle cerebral artery
Ant limb
Genu
Post limb
Basal ganglia
Medial striate fr anterior cerebral artery
Ant limb
Genu
Basal ganglia
Ant choroidalfr internal carotid
Post limb
Retrolenticular part
15. Anterior cerebral A
Internal carotid A
Middle cerebral A
Anterior choroidal A
16. CORONAL SECTION
Lenticulostriate arteries
Internal capsule
Anterior cerebral artery
Medialstriate arteries
Middle cerebral artery
Internal carotid artery
17. CORONAL SECTION
Lateral
striate
- MCA
Medial
striate
ACA
Left
middle
cerebral
artery
Right
middle
cerebral
artery
18. Medial striate - ACA
Anterior cerebral A
Middle cerebral A
*
Anterior choroidal A
19. reference
Dr. Israa lecture note
Clinical neuroanatomysnell
Human neuroanatomyinderbirsingh