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Unformatted text preview: D) line the walls of lymphatic vessels. E) trap microorganisms. 8. Lymph nodules are A) small, bean-shaped structures. B) the site of erythrocyte production. C) located in the loose connective tissue of the digestive system. D) composed of an outer cortex and inner medulla. E) connected together in a series. 9. Germinal centers are the sites of A) increased blood flow to the lymph nodes. B) fluid production. C) increased flow of lymph from infected tissues. D) entrance of lymph into lymph nodes. E) proliferation of lymphocytes in the lymph nodes. 10. The spleen A) filters damaged red blood cells from the blood. B) changes undifferentiated lymphocytes into competent lymphocytes. C) is necessary for life. It can't be removed without causing death. D) produces several different hormones with unknown function. E) has addition digestive functions....
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