Adaptive immune system
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The adaptive immune system, also known as the acquired immune system or specific immune system, is a subsystem of the immune system that is composed of specialized cells, organs, and processes that el
A scanning electron microscope image of a single human lymphocyte
T cell
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T cells are an important part of the immune system and play a central role in the adaptive immune response. T cells can be distinguished from other lymphocytes by the presence of a T-cell receptor on
Adaptive immune system
…immunity is the basis of vaccination. The cells that carry out the adaptive immune response are white blood cells known as lymphocytes. B cells and T cells, two different types of lymphocytes, carry out the main activities: antibody responses, and cell-mediated immune response. In antibody responses, B…
Scanning electron micrograph of a red blood cell (left), a platelet (center), and a T lymphocyte (right); colorized
HIV-infected T cell
Depiction of the various key subsets of CD4-positive T cells with corresponding associated cytokines and transcription factors.