B Lymphocyte
Term: B Lymphocyte
LungMAP ID: LMMA0000000086
Ages: P0-P3 | P4-P36
Synonyms: B cell
Definition: Type of white blood cell, or leukocyte, of the B lymphocyte lineage that includes antibody secreting cells (plasma cells, memory B cells, follicular and marginal zone B cells) that function in the body's antibody-driven humoral adaptive immunity. Lymphocytes of B cell lineage can be distinguished from those of T cell lineage by their lack of CD3e (as part of the T cell receptor complex).