A small white blood cell (leukocyte) that plays a large role in defending the body against disease. Lymphocytes are responsible for immune responses. There are two main types of lymphocytes: B-cells and T-cells. The B-cells make antibodies that attack bacteria and toxins while the T-cells attack body cells themselves when they have been taken over by viruses or have become cancerous. Lymphocytes secrete products (lymphokines) that affect the functional activities of many other types of cells and are often present at sites of chronic inflammation.
a subset of white blood cells. These small cells with a round and voluminous nucleus are involved in specific aspects of immune reactions. There are two categories of lymphocytes: B lymphocytes (that secrete antibodies) and T lymphocytes.
Any of the mononuclear, nonphagocytic leukocytes found in the blood, lymph and lymphoid tissues that are the body's immunologically competent cells
Cells of the immune system that respond specifically to foreign antigens. There are two classes of lymphocytes: B-lymphocytes (B-cells) and T-lymphocytes (T-cells). They are found in blood, lymph, and lymphoid tissues. B-cells become memory or plasma cells. T-cells differentiate into several types: helper (CD4 T-cells); suppressor (CD4 and CD8 T-cells); cytotoxic (CD4 and CD8 T-cells); and memory (CD4 and CD8-T-cells).
Lymphocytes in the blood are a mixed population of B-cells and T-cells. They are the major cellular component of immunity in the body. B-lymphocytes synthesize antibodies that are responsible for humoral immunity. T-lymphocytes are the principal component of cellular immunity. Lymphocytes also participate in immune regulation and surveillance, and some are cytotoxic.
Type of white blood cell. There are two types of lymphocytes, B lymphocytes and T lymphocytes. They are part of the body's defense against disease, the immune response. B lymphocytes produce antibodies, helped by T lymphocytes.
Pertaining to white blood cells that are derived from stem (immature precursor) cells of the lymphoid series that fight infection and disease.
Lymphocytes are white blood cells involved in specific immune responses. They can be divided in two major groups: the T-cells and B-cells.
Subgroup of leukocytes, which are responsible for the body's defence against viruses (T lymphocytes) and the production of antibodies (B lymphocytes).
white blood cells (leukocytes) that provide an immune response that attacks specific kinds of nonself cells and foreign substances.
the white blood cells that are essential components of the immune system.
Bone marrow-derived antibody producing cells.
white blood cells, such as B-cells and T-cells, that patrol the body for "non-self" tags.
Any of the nearly colorless cells formed in lymphoid tissue, as in the lymph nodes, spleen, thymus, and tonsils, constituting between 22 and 28 percent of all white blood cells in the blood of a normal adult human being. They function in the development of immunity and include two specific types,B cells and T cells.
A class of white blood cells, produced in the lymphoid tissue, and playing various roles in the immune system. For a detailed discussion of their function in the immune system, refer to http://gsbs.utmb.edu/microbook/ch001a.htm.
Type of white cell formed in the lymphoid tissues that prevents infection and helps provide immunity to disease.
Small (mononuclear) white blood cells which signal the start of antibody formation and call on other cells during inflammatory reactions. An important part of the body's immune system. Is damaged in immune deficency disorders.
A white blood cell formed in the lymphatic system. Usually a B cell or a T cell.
cells responsible for the immune response[ back
A leukocyte that directs the formation of antibodies and fights infection.
The white blood fells that produce antibodies and fight infection.
The main cell type of the immune system.
The class of cells in the body which are responsible for mounting an immune response. Two main types are B cells and T cells.
A type of white blood cell that participates in the body's immune system.
White blood cells made in lymphatic tissue and distributed throughout the body by way of the lymphatic fluid and blood.
White blood cells that kill viruses and defend against the invasion of foreign material.
a type of white blood cell. B-lymphocytes make antibodies against bacteria. T-lymphocytes attack virus-infected cells directly.
A type of white blood cell that is primarily responsible for the immune response; includes T cells and B cells.
Group of white blood cells, being cells of the immune system.
part of the lymphatic system; white blood cells that fight infection and disease.
White blood cells formed in lymphatic tissue.
Cells of the immune system which are involved in transplant rejection. to top
White blood cells that play a role in defending the body against disease.
these are the lymph cells which are produced by lymph glands to help fight infection
A type of leukocyte found in the blood, lymph nodes and certain organs. Lymphocytes are continuously made in the bone marrow (see also B lymphocytes and T lymphocytes).
A type of white cells found in most of the body's tissues. They stimulate production of antibodies against infection.
White blood cells that arise in the bone marrow and mediate the immune response; include T cells and B cells.
A type of white blood cell. Three important kinds of lymphocytes are T-cells, B-cells, and Natural Killer Cells. T-cells attack and destroy virus-infected cells, foreign tissue and cancer cells; B-cells produce antibodies that help destroy foreign substances; Natural Killer cells destroy cancer cells and virus-infected cells.
A subtype of white blood cells that have migrated to the lymph nodes or other lymphoid organs to await the signal to fight infection.
White blood cells. Lymphocytes have a number of roles in the immune system, including the production of antibodies and other substances that fight infection and other diseases.
White blood cells that produce antibodies.
Lymphocytes normally make up 16.0-45% of white blood cells; there are two types of lymphocytes; T-cells and B-cells; both are important for fighting infection.
Small white blood cells that are important to the immune system. A decline in lymphocyte function with advancing age is being studied for insights into aging and disease.
Cells of immune system. There are two main types of lymphocytes, B and T with specific functions.
(LIMF-o-sites): White blood cells that fight infection and disease.
White blood cells that fight infection and disease. lymphocyte proliferation test (LPT, BeLPT): A blood test to determine how white blood cells (lymphocytes) react to beryllium. A strong response may indicate the onset of disease. P - Z
Small white cells, normally present in the blood and in lymphoid tissue, that bear the major responsibility for carrying out the functions of the immune System. There are two major forms of lymphocytes, B-cells and T-cells, which have distinct though related functions in generating an immune response.
A type of white blood cell that helps the body fight infection.
Families of white blood cells with different functions in the body's immune system (see B – and T – lymphocytes) natural killer cells
small white blood cells that are critical components of the immune system. There are several types of lymphocytes: B cells are primarily involved in the production of antibodies; T cells release chemicals that activate and direct the movements of other cells to help fight infection or attack foreign matter.
A type of white blood cell that is part of the immune system.
White blood cells (B cells, T cells and NK cells) of the immune system that fight specific infections.
A type of white blood cell that fights disease and infection.
a type of white blood cell Back to previous page
A small white blood cell ( leukocyte ) that plays a large role in defending the body against disease. See the entire definition of Lymphocyte
Small white blood cells produced in the lymphoid organs and paramount in the immune defenses.
a type of white blood cell which are the most important cells in the immune system.
White blood cells that help protect the body against viral infection.
T-cells (helper, suppressor and cytoxic) and B-cells.
these blood cells are the main cells that make up lymphoid tissue, a major part of the immune system, and are found in the lymph nodes, thymus, spleen, tonsils, adenoids, bone marrow, and throughout the digestive and respiratory systems. The two types of lymphocytes are known as B lymphocytes (B cells) and T lymphocytes (T cells)
White blood cells. Lymphocytes, carried along by the lymphatic fluid, are the parts of the immune system that fight infection.
Cells of the body that form the basis of an individual’s immune system.
A sort of white blood cell that helps fend off foreign cells and other objects that have "invaded" the body. It's the lymphocytes that sometimes cause a body to reject a transplanted organ, for instance, and they're sometimes responsible for allergic reactions as well.
Important cells in the immune system that produces antibodies to attack infected and cancerous cells, and is responsible for rejecting foreign tissue. It is a kind of white blood cell.
Type of white blood cell formed in lymphatic tissue such as lymph nodes, spleen, and bone marrow.
White blood cells that circulate throughout the body to recognize and fight infection and disease.
White blood cells that plays a role in immune response. They are of two types, B cells and T cells.
a type of white blood cell that identifies foreign substances and germs (bacteria or viruses) in the body and produces antibodies that specifically target them.
A type of white blood cell. Lymphocytes, carried along by the lymph fluid, are the part of the immune system that fight infection.
The white blood cells, the T cells, and B cells of the immune system.
White blood cells (WBCs) that defend against the invasion of foreign material and viruses
A leukocyte that directs the formation of antibodies, and that has memory.
white blood cells which attack pathogens by producing antibodies Humans as organisms
Sub-group of the white blood corpuscles that assist in the combating of illnesses and foreign substances, with the two sub-types B-lymphocytes and T-lymphocytes. Only a small portion of the lymphocytes are found in the blood, the remaining lymphocytes are found in the lymphatic organs (such as thymus gland and spleen), where they multiply.
Two classes of white blood cells that can recognize foreign molecules (antigens) and mediate immune responses. B lymphocytes are responsible for production of antibodies; T lymphocytes are responsible for destroying virus- and bacteria-infected cells, foreign cells, and cancer cells.
Any of the cells produced in lymphoid tissue which are cellular mediators of immunity.