neurologist or vertebrologist uses neurological hammer in his hand to touch an artificial model of spinal

abscess anatomy artificial back background canal concept condition cord degenerative diagnosis disc disease fracture hammer hand hematoma hernia herniated his indicate injury medicine model nerve neurological neurologist neurology pain photo plastic research roots rubber sciatica scoliosis sign spinal spine spondylitis stenosis symbol touch treatment tumor uses vertebra vertebral vertebrologist vertebrology whiplash white work