Natural killer (NK) cell is defined as a type of lymphocyte that attacks invading organisms; type of leukocyte that destroys certain kinds of tumor cells and cells infected with viruses Natural killer cells are cells that circulate in the body, playing a role in different immune responses and especially in destroying diseased cells by injecting them with toxic chemicals. .

Related Articles

Macrophage at psychology-glossary.com■■■■■■■
Macrophage is a type of lymphocyte that attacks invading organisms Macrophages are a type of white blood . . . Read More
Mast cell at psychology-glossary.com■■■■■■
Mast cell is defined as connective tissue cell that releases histamine and other chemicals in response . . . Read More
Actin at psychology-glossary.com■■■■■
Actin is a structural protein of muscle that works with myosin in permitting muscular contraction Actin . . . Read More
Cytokines at psychology-glossary.com■■■■
Cytokines refer to compounds from the immune system, some of which are involved with the level of sleepiness . . . Read More
Platelets at psychology-glossary.com■■■■
Platelets refer to small disk-shaped cells found in the blood of all mammals. They are important for . . . Read More
Lymph nodes at psychology-glossary.com■■■■
Lymph nodes are small nodules of lymphatic tissue spaced throughout the lymphatic system that help clean . . . Read More
Adaptation at psychology-glossary.com■■■■
Adaptation refers to any anatomical structure, physiological process, or behaviour pattern that enhances . . . Read More
Membrane at psychology-glossary.com■■■■
Membrane refers to structure that separates the inside of a cell from the outside In psychology, "membrane" . . . Read More
T-lymphocyte (T-helper cell) at psychology-glossary.com■■■■
T-lymphocyte (T-helper cell) refers to the type of white blood cell that helps to destroy harmful bacteria . . . Read More
Insulin at psychology-glossary.com■■■■
Insulin is defined as the hormone released from the beta cells of the islets of Langerhans in response . . . Read More