corticospinal tract

(redirected from Pyramidal Tracts)
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  • noun

Synonyms for corticospinal tract

any of the important motor nerves on each side of the central nervous system that run from the sensorimotor areas of the cortex through the brainstem to motor neurons of the cranial nerve nuclei and the ventral root of the spinal cord

References in periodicals archive ?
Diffusion tensor imaging detects early Wallerian degeneration of the pyramidal tract after ischemic stroke.
Wallerian degeneration of pyramidal tract after paramedian pons infarct.
Pyramidal tract involvement is infrequent, however, our patient had involvement of pyramidal tracts manifested by hyperreflexia and ankle clonus.
However a moderately complicated but sensible method called triple stimulation technique (TST) showed that all the fibers of the descending motor tracts can be activated, and the amount of the lesions in the pyramidal tracts or in the most proximal segments of the peripheral nerves can be measured (9,10).
The pyramidal tract of the thyroid gland should always be examined during thyroid surgery; its removal is mandatory in total thyroidectomy for several reasons:
The pyramidal tract was found in 61% of all operated patients, so it can be considered as a normal component of the thyroid gland and not as ectopic tissue.
Clinical significance of preoperative fibre-tracking to preserve the affected pyramidal tracts during resection of brain tumours in patients with preoperative motor weakness.
It is believed that posed (voluntary) expressions are regulated by the pyramidal tracts of the facial nerves that descend from the cortex.
Subsequently, he presented with multiple cranial nerve palsies (from III to X cranial nerves) and central spastic palsy (bilateral pyramidal tracts involvement), which may suggest a brainstem insult.
Non-spastic cerebral palsy is due to damage to nerve cells outside of the pyramidal tracts.