The upper cervical spine, specifically, is the top vertebrae of the spine. It is made up of the atlas (C1) and the axis (C2). These vertebrae are atypical and are different in shape and function ...

Rheumatoid arthritis (RA) is an autoimmune disorder that causes the immune system to attack its own tissues, especially the lining of joints, leading to joint damage and pain. When RA attacks the ...