Lymphocytes that act directly on antigens to destroy them or produce chemicals that are toxic to them are called T4 cells. They are also known as T helper cells.
The molecules on pathogens that enable the immune system to distinguish one kind of pathogen from another are called antigens. Antibodies destroy pathogens by binding to the antigens on the pathogen.
Antigens are protein substances formed in the blood to destroy foreign substances. Antigens can also be administered artificially in some cases.
The white blood cells responsible for recognizing and destroying foreign antigens are called lymphocytes. There are two main types of lymphocytes: B cells, which produce antibodies to tag antigens for destruction, and T cells, which directly attack and destroy cells that are infected or presenting foreign antigens.
This process is called cell-mediated immunity. T cells, specifically cytotoxic T cells, recognize and destroy cells that are infected with a pathogen or abnormal cells, such as cancer cells. This immune response is crucial for clearing infections and providing immunity against future exposures to the same antigen.
Phagocytosis is the process by which cells ingest and destroy bacteria in the body. This process makes up part of the immune function.
it produces the hormones involved in the development of white blood cells called Tcells which form part of the immune system.
Antigens with only one antigenic site are called Major histocompatibility complex (MHC)
Antigens Antibodies neutralize these molecules.
Those cells are called antigen-presenting cells (APCs). They include dendritic cells, macrophages, and B cells. Their role is to ingest foreign antigens, process them, and present them to T cells to initiate an immune response.
The process is called agglutination. It occurs when antibodies bind to specific antigens on the surface of cells or particles, causing them to clump together or aggregate. Agglutination is commonly used in laboratory tests to detect the presence of specific antigens or antibodies.
PhagocytosisPhagocytes make up three-quarters of the body's white blood cells. They destroy pathogens by engulfing them.It's called phagocytosis. Macrophages mainly phagocytose the pathogens.