extracorticospinal tract
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extracorticospinal — ex·tra·cor·ti·co·spi·nal (eks″trə kor″tĭ ko spiґnəl) outside the corticospinal tract; see under tract … Medical dictionary
Extrapyramidal system — That part of the nervous system that regulates muscle reflexes. * * * the system of nerve tracts and pathways connecting the cerebral cortex, basal ganglia, thalamus, cerebellum, reticular formation, and spinal neurones in complex circuits not… … Medical dictionary
