Humoral and cell mediated immunity relies on
surface receptors
complex interactions between different types of cells and molecules in the immune system.
Humoral immunity involves the production of antibodies, which are proteins that circulate in the blood and other bodily fluids. B cells are responsible for producing these antibodies, which are specific to particular pathogens or other foreign substances. When a pathogen invades the body, B cells are activated, and they produce antibodies that are designed to recognize and neutralize the invader. Antibodies can also activate other components of the immune system, such as complement proteins, which help to destroy the pathogen.
Cell-mediated immunity involves the activation and proliferation of T cells, which are another type of immune cell. T cells can recognize and destroy infected cells, as well as help to activate other cells in the immune system. Two major types of T cells are cytotoxic T cells (also known as CD8+ T cells) and helper T cells (CD4+ T cells). Cytotoxic T cells directly attack infected cells, while helper T cells help to activate B cells and other immune cells.
Both humoral and cell-mediated immunity are important for protecting the body against infections and other foreign substances. They work together to identify and eliminate pathogens, and they can also provide long-term protection in the form of memory cells that can quickly respond to future infections with the same pathogen.
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