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A cell derived from B or T lymphocytes that can quickly recognize a foreign antigen to which the body has been previously exposed. Memory T cells stimulate T helper lymphocytes and cytotoxic T cells; memory B cells stimulate the production of antigen-specific antibodies by B plasma cells. Both types of memory cells survive for years, providing a durable adaptive immune response against foreign antigens.
See also: cell
memory cell(immunology) a LYMPHOCYTE that has had an initial exposure to a specific ANTIGEN and undergone limited proliferation, so that it will respond more quickly than an unprimed lymphocyte when subsequently exposed to that antigen. Such cells form the basis of immunological memory.
the capacity to recall previously experienced sensations, information, data and ideas.
the ability of the brain to use knowledge gained from past experience. This is essential for the process of learning by animals. The process is poorly understood, but its practical application is sophisticated, especially in dogs.
an expanded clone of small lymphocytes derived from stimulated antigen-sensitive B and T lymphocytes. They have antigen receptors of the same specificity as the parent cell. Important in the secondary immune response.
the ability of the immune system to respond to more strongly and rapidly to the second and subsequent exposures to an antigen.
a property of some synthetic fibers which encourages the spontaneous untying of knots—the 'memory' of the fiber is that it is a straight fiber.