Mobility of the spinal cord under abnormal conditions.
D006801:Humans; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging*; D011859:Radiography; D013116:Spinal Cord / Q000503:physiopathology*; D013118:Spinal Cord Diseases / Q000000981:diagnostic imaging*; D013125:Spinal Neoplasms / Q000000981:diagnostic imaging*