BRAINCAKELymphocytes
The specific immune response depends on B and T lymphocytes.
The main types of T lymphocytes are T helper cells, T killer cells, T memory cells and T regulator cells.
B cells are B plasma cells, B effector cells and B memory cells.
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Key terms in this lesson
- phagocytosis
- The process by which a cell, such as a white blood cell, engulfs and digests a pathogen or debris.
- pathogen
- A microorganism that causes disease.
- antigen
- A molecule, usually a protein, on the surface of a cell or pathogen that triggers an immune response.
- antibody
- A Y-shaped protein (immunoglobulin) produced by B plasma cells that binds specifically to a particular antigen.
- antigen-presenting cell
- A cell, such as a macrophage, that displays a foreign antigen on its surface combined with a major histocompatibility complex molecule, activating T helper cells.
More in Communicable Diseases
- Cytokines
- Opsonins
- Antibodies
- How Antibodies Work
- Cell-Mediated Immunity
- Humoral Immunity
- Auto-Immune Diseases
- Natural Immunity
All 40 lessons in Communicable Diseases · All OCR AS-level Biology topics