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Related to corticospinal tracts: Corticospinal fibres


Of or relating to the cerebral cortex and the spinal cord.
References in periodicals archive ?
Morphology criterion: Impaired motor conduction of the corticospinal tracts by tracking changes in the pattern and duration of MEP waveform morphology.
Intraoperative neurophysiological monitoring of the spinal cord during spinal cord and spine surgery: a review focus on the corticospinal tracts.
Brown-Sequard syndrome, first reported in 1849, is characterised by hemisection of the cord with disruption of the descending lateral corticospinal tracts resulting in ipsilateral hemiplegia, and damage of the ascending lateral spinothalamic tracts (which cross within one or two levels of the dorsal root entrance) resulting in contralateral loss of pain and temperature.
This is what the doctors said about Jason's condition: "Subacute combined degeneration of the spinal cord involving clearly the pyramidal tract as well as the corticospinal tracts based on MRI of the spine; Cyanocobalamin deficiency based on the very low level of his first B12 blood serum level; Nitrous oxide abuse; His hands are also getting weak in terms of his grip strength.
1-3) Normal fiber tracts are also seen in the brainstem (including the corticospinal tracts, medial lemnisci, and superior, middle and inferior cerebellar peduncles).
52,53) The degree of fiber tract loss in corticospinal tracts at the level of the brainstem in MS patients is likely to relate to the lesion load in the supratentorial brain.
This results in compression of the crus and subsequent damaging of the descending corticospinal tracts and corticobulbar tracts (Kernohan & Woltman).
Brown-Sequard syndrome is characterised by disruption of the descending lateral corticospinal tracts resulting in ipsilateral hemiplegia.
With time, the integrity of the crus cerebri and its descending corticospinal tracts is disturbed, and a contralateral motor deficit is produced with a deteriorating level of consciousness.
Diffusion-tensor MR tractography of somatotopic organization of corticospinal tracts in the internal capsule: Initial anatomic results in contradistinction to prior reports.
The axons arising from the large pyramidal cells in layer V (Betz's cells) of area 4 contribute only about 5% of the fibers of the corticospinal tract and its pyramidal portion.