Examine the photograph of the hand in the following figure.The person's joints are severely damaged because ______.

Question

Quizplus · Accepted Answer

The photograph shows severe joint damage, which is typically caused by an autoimmune reaction. In autoimmune diseases like rheumatoid arthritis, the immune system attacks and damages the body's own tissues, including the cartilage and bone in the joints. None of the other answer choices are supported by the photograph or make sense given the symptoms described. A viral infection would not selectively attack only the cartilage of the fingers, and cytotoxic T cells do not typically target bone. Similarly, T cells would not react against the myelin in the hand, as myelin is found in the nervous system and not in the joints.

Examine the Photograph of the Hand in the Following Figure