Respuesta :
1. **T lymphocytes (T cells):** These cells are a type of white blood cell that plays a central role in the adaptive immune response. T cells can be further classified into subtypes such as helper T cells, cytotoxic T cells, and regulatory T cells. Helper T cells coordinate the immune response, cytotoxic T cells kill infected cells, and regulatory T cells help maintain tolerance to self-antigens.
2. **B lymphocytes (B cells):** B cells are another type of white blood cell that is involved in the adaptive immune response. When B cells encounter a specific antigen, they differentiate into plasma cells that produce antibodies. These antibodies can bind to the antigen and mark it for destruction by other immune cells.
3. **Antigen-presenting cells (APCs):** APCs, such as dendritic cells, macrophages, and B cells, play a crucial role in initiating the adaptive immune response. They capture antigens, process them, and present them to T cells, which then activate the immune response against the specific antigen.
These cells work together in a coordinated manner to mount an effective immune response against pathogens or foreign substances, while also maintaining tolerance to self-antigens. By recognizing and responding to specific antigens, the adaptive immune system can generate immunological memory and provide long-lasting protection against future encounters with the same antigen.
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