Compléter Lymphatic Organs 1Version en ligne This activity will help you retain the information you've learned about lymphatic organs. par Leah Lloyd 1 lymphatic marrow microorganisms immune blood red lymphocytes destroy Lymphatic organs are characterized by clusters of and other cells , such as macrophage . The lymphocytes originate in the bone with other types of cells and are carried in the blood from the bone marrow to the lymphatic organs . When the body is exposed to and other foreign substances , the lymphocytes proliferate within the organs and then travel in the blood to the site of the invasion . This is part of the system response that attempts to the invading agents . The lymph nodes , tonsils , spleen and thymus are examples of lymphatic organs .
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