Pathology · single question
Rheumatoid Arthritis is related to all of the following EXCEPT:
Show answer and explanation
Correct answer: A. Stress areas caused by weight bearing
✓ A) Stress caused by weight bearing is the EXCEPTION.
Rheumatoid arthritis is an autoimmune/inflammatory condition, not a wear-and-tear/mechanical disease. Osteoarthritis is the weight-bearing/mechanical joint disease. RA is triggered by autoimmune mechanisms (possibly with infectious triggers), and it does affect the TMJ (bilateral involvement, condylar destruction).
Rheumatoid arthritis is an autoimmune/inflammatory condition, not a wear-and-tear/mechanical disease. Osteoarthritis is the weight-bearing/mechanical joint disease. RA is triggered by autoimmune mechanisms (possibly with infectious triggers), and it does affect the TMJ (bilateral involvement, condylar destruction).
- A. Infection IS associated with RA — certain infections (e.g., P. gingivalis) are linked to triggering or worsening RA. This IS a true association.
- B. Rheumatoid arthritis (RA) is an AUTOIMMUNE condition affecting synovial joints — it is NOT caused by mechanical stress from weight bearing. Unlike osteoarthritis (which IS related to mechanical stress/wear), RA is driven by autoimmune inflammation targeting synovial membranes. This is the exception.
- C. Symmetrical joint involvement IS a hallmark of RA (distinguishing it from other arthritides). This IS true of RA.