A answered. Once the bacteria from a cat scratch reaches the blood stream, cat scratch disease (CSD) can spread to various parts of the body. Swollen lymph nodes closest to the scratch or bite are the most noticeable symptom. Most often these are the lymph nodes in the head, neck or upper limbs.
The upper three regions comprise the remaining 24, and are grouped under the names cervical (7 vertebrae), thoracic (12 vertebrae) and lumbar (5 vertebrae), according to the regions they occupy. Source(s): http://en.wikipedia.org/wiki/Vertebrae.
Facts About Intervertebral Disc Anatomy. There are a total of 23 spinal discs in the vertebral column. There are 5 in the cervical levels, 11 in the thoracic levels, 4 in the lumbar spine and 3 at the junctions between these regions. At each frontier, there is a transitional disc.