Plasma cells within the human body are responsible for producing antibodies.
The Role of Plasma Cells
- Adaptive Immune Response: Plasma cells are specialized immune cells that are crucial for the adaptive immune response. This response is targeted and specific to invading pathogens, offering long-lasting protection.
- Antibody Production: These cells synthesize and secrete large quantities of antibodies, also known as immunoglobulins. Antibodies are specialized proteins that recognize and neutralize foreign invaders like bacteria, viruses, and toxins.
- Different Types of Antibodies: The human body produces five main types of antibodies, each having specific functions:
- IgG: Most abundant antibody found in blood and tissues.
- IgA: Present in mucous membranes and bodily secretions like tears and saliva.
- IgM: First antibody produced during an immune response.
- IgE: Involved in allergic reactions and fighting parasitic infections.
- IgD: Function is less well-understood, but they are present on B cells.
Where are Plasma Cells Found?
Plasma cells are primarily found in:
- Bone Marrow: Mature plasma cells reside in the bone marrow, where they continuously produce antibodies.
- Lymph Nodes: During an immune response, plasma cells can also be found in the lymph nodes.
- Spleen: The spleen is another area where antibody production can take place.
- Infected Tissues: They can migrate to infection sites to provide focused antibody production.
Table: Antibody Production
| Cell Type | Function |
|---|---|
| Plasma Cells | Produce and release antibodies |
