Reactive lymphocyte
Reactive lymphocyte
A Reactive lymphocyte (pronounced: ree-ak-tiv lim-fo-site) is a type of white blood cell that has undergone changes in response to antigen stimulation, such as an infection or immunization.
Etymology
The term "Reactive lymphocyte" is derived from the word "reactive", which means showing a response to a stimulus, and "lymphocyte", a type of white blood cell.
Definition
Reactive lymphocytes are larger than typical lymphocytes and have an increased amount of cytoplasm. They are characterized by their irregular shape and the presence of vacuoles. These cells are produced when the immune system is activated, such as during an infection or following vaccination.
Related Terms
- Lymphocyte: A type of white blood cell that is part of the immune system. There are two main types of lymphocytes: B cells and T cells.
- Antigen: A substance that triggers an immune response, especially the production of antibodies.
- Cytoplasm: The material or protoplasm within a living cell, excluding the nucleus.
- Vacuole: A space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
- Immune system: The bodily system that protects the body from foreign substances, cells, and tissues.
See Also
External links
- Medical encyclopedia article on Reactive lymphocyte
- Wikipedia's article - Reactive lymphocyte
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