Lupus Arthritis. Lupus arthritis causes pain, stiffness, swelling, tenderness and warmth in your joints. The joints most often affected are the ones farthest from the middle of the body, such as fingers, wrists, elbows, knees, ankles and toes.
Each antibody binds to a specific antigen; an interaction similar to a lock and key. An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shape protein produced by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.The antibody recognizes a unique molecule of the harmful agent, called an antigen, via the variable region.n antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shape protein produced by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.
Answers. Best Answer: Antibodies are produced as a reaction to something foreign present in the body such as bacteria from a cut for example. Once that threat has been dealt with, there is no need for those specific antibodies.nswers. Best Answer: Antibodies are produced as a reaction to something foreign present in the body such as bacteria from a cut for example. Once that threat has been dealt with, there is no need for those specific antibodies.