Immune Cells: Dendritic and Phagocytes, and B Cells

dendritic cells, phagocytes, B cells

antigen presenting cells

Dendritic cells are a type of immune cells that play a key role in the initiation of the immune response. They are found in tissues throughout the body and are responsible for capturing antigens (foreign substances such as bacteria, viruses, and cancer cells) and presenting them to other immune cells. This process helps to activate T-cells, which are important for eliminating the antigen.

Phagocytes are a group of white blood cells that engulf and destroy foreign substances such as bacteria and dead cells. They are an important part of the innate immune system, which provides immediate defense against infections. Phagocytes include neutrophils, monocytes, and macrophages.

B cells are a type of white blood cell that are a key component of the adaptive immune system. They are responsible for producing antibodies, which are proteins that help to identify and neutralize foreign substances in the body. B cells are produced in the bone marrow and mature in the lymph nodes. When they encounter an antigen that matches their antibody, they begin to produce large quantities of antibodies. These antibodies then help to destroy the antigen and prevent further infection.

More Answers: