Keywords: نورونهای کورتیکوسپاسین; SCI; spinal cord injury; SCIH; spinal cord hemisection; WldS; Wallerian degeneration slow mutant mice; IL; ipsilateral to the injury; CL; contralateral to the injury; VST; vestibulospinal tract; VLAT; ventrolateral spinal tract; Spinal cord injury; Waller