Arthritis: Understanding Osteoarthritis and Rheumatoid Arthritis

What is the primary cause of osteoarthritis?

• Mechanical wear and tear

• Bacterial infection

• Viral infection

• Autoimmune response

What is the role of synovial fluid in a joint?

• To strengthen the joint

• To lubricate the joint for smooth movement

• To provide nutrients to the bones

• To act as a cushion between bones

What are 'joint mice' in the context of osteoarthritis?

• A genetic mutation affecting joints

• A type of bacteria causing joint pain

• Pieces of cartilage floating in the joint space

• Small rodents that affect joints

What are osteophytes commonly known as?

• Bone spurs

• Cartilage fragments

• Joint mice

• Synovial nodules

What is rheumatoid arthritis primarily characterized by?

• Cartilage destruction

• Synovitis

• Joint mice

• Bone spurs

Which genetic marker is associated with rheumatoid arthritis?

• CFTR

• APOE4

• BRCA1

• HLA-DR4

What is a pannus in rheumatoid arthritis?

• A bone spur

• A type of cartilage

• A type of joint fluid

• A group of granulation tissue

What does the term 'ankylosing' refer to in rheumatoid arthritis?

• Inflammation of the synovium

• Formation of osteophytes

• Fusion of the joints

• Destruction of cartilage

Which joints are typically spared in rheumatoid arthritis?

• Distal interphalangeal joints

• Knee joints

• Hip joints

• Proximal interphalangeal joints

What type of antibody is the rheumatoid factor?

• IgA

• IgE

• IgM

• IgG