Lateral ventricle

 

Cavity of the cerebral hemisphere which communicates inferiorly with the third ventricle which in turn enters the 4th ventricle.

The 2 lateral ventricles have the following divisions

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(1)    Anterior horn projects into the frontal lobe

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(2)    Posterior horn projects into occipital lobe

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(3)    Inferior horn projects into temporal lobe

The anterior horn has a roof made up of the corpus callosum and a lateral wall made up of the caudate nucleus.  It projects into the body of the lateral ventricle (at the trigone of the lateral ventricle).  The trigone of the lateral ventricle communicates with the body, the occipital horn and the temporal horn of the lateral ventricle.

            The temporal horn has a medial wall made of the hippocampus.  Its dorsolateral extreme is formed by the amygdaloid nuclear complex.

            The occipital horn has a roof made of the tapetum.  The lateral ventricles communicates with the 3rd ventricle by the interventricular foramina.

 

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Axial MRI of lateral ventricle - Red mark shows anterior horn            

 
Brainstem Medulla Pons Midbrain Thalamus Epithalamus
Basal ganglia Forebrain Temporal lobe Cerebral operculum Remove operculum Wall of lateral ventricle 1
Wall of lateral ventricle 2 Wall of lateral ventricle 3 lateral ventricle 1 lateral ventricle 2 Base of brain Rhomboid fossa

 

 

 

 

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