The study of the length of the spinal cord segments revealed that the longest segments are found in the cervical region of the spinal cord, reaching its maximum at the third spinal cord segment. The values of the segment length in the thoracic region are smaller than those of the cervical one, while in the lumbar region the segment length decreases in length from the last lumbar spinal cord segment caudad to the end of the spinal cord. The cervioal enlargement extends from C through Tz, while the lumbar enlargement extends from L, through S. The transverse and dorsoventral diameters of the cer vical and lumbar enlargement have the highest measurement along the whole spinal cord.