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pyramidal system
(redirected from corticospinal tract)

   Also found in: Dictionary/thesaurus, Medical, Wikipedia 0.01 sec.
pyramidal system [¦pir·ə¦mid·əl ′sis·təm]
(anatomy)
The corticospinal and corticobulbar tracts.


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Different types of SCI are contusions, the bruising of spinal cord; compression, caused by pressure to the spinal cord; lacerations, tearing of the nerve fibers; central cord syndrome, a damage specific to the corticospinal tract, the cervical region in the spinal cord.
While we can not prove its causality, the relationship between ventricular and peduncular expansion indicates that ventricular expansion coincides with the size of the corticospinal tract in the midbrain.
A recent study reported that after midthoracic dorsal hemisection, the corticospinal tract collaterals of the hind limb sprout into the cervical gray matter where they contact descending propriospinal neurons and a new intraspinal circuit is formed [22].
 
 
 
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