Examlex
Which of the following is a true statement?
Rheumatoid Factor
An antibody found in the blood that is a common indicator of rheumatoid arthritis.
Autoantibody
An antibody produced by the immune system that mistakenly targets and attacks the body's own tissues or cells.
Phagocytosis
The process by which cells, especially immune cells, engulf and digest foreign particles or pathogens.
Antigens
Substances that the immune system recognizes as foreign or dangerous, triggering an immune response.
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