roughly c shaped cavity of cerebral hemisphere lined by ... lectures/anatomy/lat.ventricle.pdf ·...
TRANSCRIPT
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• Roughly C shaped Cavity of Cerebral Hemisphere lined by ependyma & filled with CSF
• Communicate with third ventricle through their respective inter-ventricular foramen
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Lateral Ventricle
• Separated from each other by septum pellucidum
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Lateral Ventricle
Each consist of • central part (body)• Three horns-
anterior(frontal)posterior(occipital)inferior (temporal)
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Central part
• Extent – from inter-ventricular foramen to splenium of corpus callosum
• Triangular on coronal section
• Has – roof , floor & medial wall
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CENTRAL PART:
1. Roof: Trunk of corpus callosum
2. Medial Wall: Septum pellucidum &
fornix
3. Floor: (lateral to medial)
1. Caudate nucleus
2. Stria terminalis
3. Thalamostriate vein
4. Thalamus (covered by choroid plexus)
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ANTERIOR HORN
Anterior wall
Genu of corpus callosum
Roof:
Trunk of corpus callosum
Floor:
Head of caudate nucleus &
Rostrum of corpus callosum
Medial wall:
Septum pellucidum &
column of fornix
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POSTERIOR HORN:1. Roof &
2. Lareal wall:Tapetum
3. Medial wall:
1. Bulb of posterior horn (due to forceps major)
2. Calcar avis (due to calcarine sulcus)
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INFERIOR HORN
1. Roof: Tail of caudate nucleus,
amygdaloid body &
stria terminalis
2. Floor: Medially- Hippocampus,
Covered by alveus and fimbria
Laterally- Collateral eminence
(due to collateral sulcus)
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APPLIED ANATOMY
Block results in
Enlargement of ventricles/hydrocephalus
Results in pressure on surrounding nervous tissue including optic radiation
Could be unilateral or bilateral depending on site of block