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Use the following information to answer the next two questions. Acupuncture has been used in Chinese medicine for thousands of years as a treatment for chronic pain and other ailments. Acupuncture increases the level of endorphins in the central nervous system. Endorphins affect the part of the brain that interprets pain stimuli. Acupuncture also affects the part of the brain that interacts with the endocrine system in the maintenance of homeostasis. 3. The part of the brain that is affected by acupuncture in the treatment of chronic pain is the A. cerebrum B. cerebellum C. hypothalamus D. medulla oblongata 4. The part of the brain that is affected by acupuncture in the treatment of ailments involving endocrine control is the A. cerebrum B. cerebellum C. hypothalamus D. medulla oblongata