Internal capsule
-
Upload
mbbs-ims-msu -
Category
Education
-
view
7.400 -
download
1
Transcript of Internal capsule
![Page 1: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/1.jpg)
INTERNAL CAPSULE
AMUTHAMEENA MANOHARAN
THIAGGU PALAN
JAYAGANTHAN MANAUGAR
MOHD ZAHIR
![Page 2: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/2.jpg)
HIGHLIGHTS…
INTRODUCTION PARTS OF INTERNAL CAPSULE BLOOD SUPPLY
![Page 3: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/3.jpg)
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- R L
![Page 4: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/4.jpg)
This is a compact bundle of fibres through which the large collections of fibres pass
![Page 5: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/5.jpg)
PARTS OF INTERNAL CAPSULE1. ANTERIOR LIMB
- Caudate nu. & lentiform nu.
2. GENU3. POSTERIOR LIMB
- Thalamus & lentiform nu.
4. RETROLENTIFORM5. SUBLENTIFORM
![Page 6: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/6.jpg)
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
![Page 7: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/7.jpg)
Thalamocortical fibres
Corticopontine fibres
Corticonuclear &corticospinal fibres
Connections:ANTERIOR LIMB
Anterior thalamic radiation Frontopontine
GENUPart of superior thalamic radiationFrontopontineCorticonuclear
– RETROLENTIFORM• Optic radiation• Parieto-pontine• Temporo-pontine
– SUBLENTIFORM• Auditory radiation
POSTERIOR LIMBSuperior thalamic radiationFrontopontineCorticonuclear (corticobulbar)CorticospinalExtrapyrimidal
![Page 8: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/8.jpg)
BLOOD SUPPLY
![Page 9: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/9.jpg)
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 choroidal fr internal carotid Post limb Retrolenticular part
![Page 10: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/10.jpg)
Anterior choroidal A
Middle cerebral A
Anterior cerebral A
Internal carotid A
![Page 11: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/11.jpg)
Internal capsule
Lenticulostriate arteries
Middle cerebral arteryInternal carotid artery
Anterior cerebral artery
Medialstriate arteries
CORONAL SECTION
![Page 12: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/12.jpg)
Left middle cerebral artery
Rightmiddle cerebral artery
MedialstriateACA
Lateralstriate- MCA
CORONAL SECTION
![Page 13: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/13.jpg)
*Anterior choroidal A
Middle cerebral A
Anterior cerebral A
Medial striate - ACA
![Page 14: Internal capsule](https://reader035.fdocuments.net/reader035/viewer/2022062312/5560e1f0d8b42afb7b8b49bc/html5/thumbnails/14.jpg)
REFERENCE1. Dr. Israa lecture note2. Clinical neuroanatomy snell3. Human neuroanatomy inderbir singh