lymphatic system,
systema lymphaticum the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the body
b cell,
b lymphocyte a lymphocyte derived from bone marrow that provides humoral immunity; it recognizes free antigen molecules in solution and matures into plasma cells that secrete immunoglobulin (antibodies) that inactivate the antigens
t cell,
t lymphocyte a small lymphocyte developed in the thymus; it orchestrates the immune system's response to infected or malignant cells
lymphocyte -
A type of white blood cell or leukocyte that is divided into two principal groups and a null group; B-lymphocytes, which produce antibodies in the humoral immune response, T-lymphocytes, which participate in the cell-mediated immune response and the null group, which contains natural killer cells, cytotoxic cells that participate in the innate immune response.
