The chief pathologic features of osteoarthritis are a. stress fractures of the epiphysis, inflammation of the diaphysis, and accumulation of excessive synovial fluid. b. degeneration of articular cartilage, destruction of the bone under the cartilage, and thickening of the synovium. c. thinning of the joint capsule, resorption of bone, excessive formation of new bone, and formation of bone spurs. d. autoimmune damage to the synovium, destruction of articular cartilage by pannus, and thickening of synovial fluid.

The answer is D: Autoimmune damage to the synovium, desctruction of articular cartilage by pannus, and thickening of synovial fluid.

Explanation:

Osteoarthritis is the damage of the cartilage that is found in the joints of the long bones, which leads to its destruction, with decreased joint space, pain and inflammation. This friction that generates the damage, produces deformity and limitation for movements. It is a very common and frequent pathology.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.