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B-cells

3:47

B cells and antibodies

3:02

B-cell, Plasma and Memory cell Animation

1:39

B-cell Surface Proteins

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What are B Cells?

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"Immune" Documentary - Part 6 - B Cells & Antibody Release

B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype. They function in the humoral immunity component of the adaptive immune system by secreting antibodies. Additionally, B cells present antigen and secrete cytokines. In mammals, B cells mature in the bone marrow, which is at the core of most bones. In birds, B cells mature in the bursa of Fabricius, a lymphoid organ.