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.
The cervical spine reliably has seven vertebrae in humans (1,2). We counted the first seven vertebrae as cervical vertebrae (cervical ribs were not documented), with the rib-bearing vertebrae below these labeled as thoracic vertebrae and the nonârib-bearing vertebrae below these labeled as lumbar vertebrae.