in the lateral corticospinal tract do the nerve fibres from the primary motor cortex actually pass through the ventral lateral nuclei of the thalamus? I'm pretty sure this is the case but my textbook only makes reference to its descent through the corona radiata and internal capsule.
In the lateral corticospinal tract...?
No,
Corticospinal tract is a descending tract and this becomes the lateral corticospinal tract only after decussation in the brain stem(decussation of the pyramids).
Corticospinal tract originates from primary and seconday motor cortex of the cerebral cortex which are connected to the ventral lateral nucleus of the thalamus.
Reply:Yes, they pass thru the nuclei, and they encapsulate the coronal radiata, they pass along side the internal capsule and then branch into the vagus nerves at the choriod plexus of the fourth ventricle
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