Answer to Question 1
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Other spinal reflexes may involve synapses with interneurons within the spinal cord, which adjust movement and response based on information from higher brain centers to coordinate movement and position. Spinal reflexes do not adjust response and recovery, adjust the body to the upright position, or coordinate balance.
Answer to Question 2
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Autoimmune disease occurs when the body responds to specific self-antigens to produce antibodies or cell-mediated immune responses against its own cells. The actual cause of autoimmune disease is not known, but theories speculate that (1) it could be a result of response to a cell that was invaded by a virus, leading to antibody production to similar cells; (2) production of autoantibodies is a normal process that goes continuously, but in a state of immunosuppression, the suppressor T cells do not suppress autoantibody production; or (3) a genetic predisposition to develop autoantibodies is present.