Rheumatoid arthritis commonly affects the -
Cervical spine
Thoracolumbar spine
Lumbar spine
Sacral spine
Ans. is 'a' i.e., Cervical spine o In decreasing frequency, the metacarpophalangeal (MCP), wrist, proximal interphalangeal (PIP), knee, metatarsophalangeal (MTP), shoulder, ankle, cervical spine, hip, elbow and temporomandibular joints are most commonly affected.
Rheumatoid Arthritis