IMMUNOLOGY

Detailed explanation-1: -The primary parts of the immune system include the bone marrow and thymus. The bone marrow is extremely important to the immune system because all the body’s blood cells (including T and B lymphocytes) originate in the bone marrow. B lymphocytes remain in the marrow to mature, while T lymphocytes travel to the thymus.

Detailed explanation-2: -Bone marrow-derived dendritic cells are able to uptake the blood-derived cell-associated tumor-associated antigen, process them and induce antigen-specific systemic protective T cells-mediated immunity. Thus, bone marrow DCs are functionally important in adaptive immunity.