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Making the world better, one answer at a time. bone marrow is considered to part of the immune system because it was the key component of the lymphatic system, producing the lymphocytes that support the body's immune system.aking the world better, one answer at a time. bone marrow is considered to part of the immune system because it was the key component of the lymphatic system, producing the lymphocytes that support the body's immune system.
1 It is believed that these radio frequencies use the bone marrow as their main conducting circuit within the body. 2  The bone marrow is the part of the immune system where antibodies, white blood cells and other essential âgerm-fightersâ are generated.