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.
Each lumbar spine segment is comprised of: 1  Two vertebrae, such as L4-L5, stacked vertically with an intervertebral disc between them. A healthy disc is cushiony, with a lot of water, and has a sponge-like substance. 2  The two adjacent vertebrae are connected in the back of the spine by two small joints called facet joints.