Skeletal System


What is arthritis?

Arthritis (from the Greek arthro, meaning “joint,” and itis, meaning “inflammation”) is a group of diseases that affect synovial joints. Arthritis may originate from an infection, an injury, metabolic problems, or autoimmune disorders. All types of arthritis involve damage to the articular cartilage. Two major categories of arthritis are degenerative diseases and inflammatory diseases.


This is a web preview of the "The Handy Anatomy Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App