a small, mononuclear, non-phagocytic white blood cell found in the blood, lymph, or lymphoid tissue; major cell of the immune system that is essential for immunity.
a nearly colorless cell found in the blood that helps fight disease and infection
a white blood cell that is an important part of the body's immune system, helping to destroy invading microorganisms
A white blood cell involved in antibody formation or cellular immune responses.
A white blood cell that is part of the immune system. Lymphocytes help defend against infections.
Lymph cell or white blood cell.
A type of white blood cell that is primarily found in lymph nodes. Lymphocytes provide protection against some kinds of infections.
(LIM foh SITE): White blood cell manufactured in the bone marrow, lymph, nodes, and spleen. There are two types: B cells and T cells.
A cell of the lymphatic system that participates in the immune response.
Type of white cell that fights infections by producing antibodies and regulating the immune system response
the type of white blood cell which is formed by lymphoid tissue. B lymphocytes produce circulating antibodies; T lymphocytes are involved in cell-mediated immunity (CMI).
A type of white blood cell capable of responding to the presence of foreign material in the body; lymphocytes play a central role in directing and coordinating immune responses.
a type of white blood cell (e.g., T-cell, B-cell) responsible for immune defense.
One of the major groups of white blood cells. The three main 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 help produce antibodies or proteins that help destroy foreign substances. Natural Killer cells destroy cancer cells and virus-infected cells.
a type of white blood cell involved in infection and inflammation
A term for the broad category of white blood cells that help the immune system fight infections. HIV reproduces in and destroys helper T-lymphocytes (helper T-cells or CD4 cells).
A major category of white blood cell that initiates the immune response. Collections of lymphocytes are organized into lymph nodes. When stimulated by an antigen the lymphocyte produces a variety of chemicals called lymphokines that perform immune response functions.
Cells that mediate antigen-specific immune responses. T, B and natural killer cells are the subsets.
a type of immune system cell associated with the lymph node system
the cells which are responsible for identifying antigens and for activating protective immune responses.
certain types of lymphocytes are involved in the inflammatory process, located in the dermis
White blood cell that makes an immune response when activated by a foreign molecule (an antigen). T lymphocytes develop in the thymus and are responsible for cell-mediated immunity. B lymphocytes develop in the bone marrow in mammals and are responsible for the production of circulating antibodies.
White blood cell involved in the immune response; includes B cells and T cells (Lecture: Acquired Immunity, 2/14/02)
White blood cells that are part of the immune system.
cell made by stem cells (cells in the bone marrow which make many other kinds of cells) that goes to the lymphoid tissue in the thymus or bone marrow. They fight infections and make up a large portion of cells in the blood.
a leukocyte of blood, bone marrow and lymphatic tissue. Lymphocytes play a major role in both cellular and humoral immunity, and thus several different functional and morphologic types must be recognized, i.e. the small, large, B-, and T-lymphocytes, with further morphologic distinction being made among the B-lymphocytes.
a mononuclear leukocyte; chiefly a product of lymphoid tissue andparticipates in humoral and cell-mediated immunity
A white blood cell having a round or oval nucleus and sky blue cytoplasm. The nuclear chromatin is densely clumped but separated by many clear areas giving a "hill and valley" effect. A few red-purple (azurophilic) granules may be present in the cytoplasm.
A leukocyte (white blood cell) that functions in specific immunity.
Mononucleated small cell present in blood, marrow and lymphoid tissue, which plays an important role in the development of the immunological response.
Small white blood cell essential for normal function of the immune system; may be 1 of 2 types: a T lymphocyte or B lymphocyte.
A cell found in the blood and in lymphoid organs such as lymph nodes, tonsil and spleen that plays a central role in the functioning of the immune system.
A cell of the immune system. The two subsets, T and B-cells, kill foreign cells and produce antibodies, respectively.
an agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infection
a form of while blood cell whose numbers increase during infection
a white blood corpuscle found in the lymphatic tissue, blood and lymph
a type of white cell that fights infection by producing antibodies and other defense substances; occurs in 2 forms: B cells that recognize specific antigens and produce antibodies against them, and T cells that are agents of the immune system.
A leukocyte (white blood cell) found in large numbers in lymphoid tissues that contribute to specifi
type of white blood cell formed in the lymph nodes, which forms part of the body's immunological defence against infection.
A mononuclear leukocyte which is a product of lymphoid tissue that participates in humoral and cell-mediated immunity.
White blood cell responsible for the orchestration of immunity to infection by micro-organisms. B lymphocytes produce antibody and T lymphocytes have helper (CD4), suppressor (CD8) and cytotoxic (CD8) roles.
Small white blood cells containing little cytoplasm and compact nuclei. Can be further divided into B-cells and T-cells.
Any of the nearly colorless cells found in the blood, lymph, and lymphoid tissues, constituting approximately 25 percent of white blood cells and including B cells, which function in humoral immunity, and T cells, which function in cellular immunity.
A type of non-granular leukocyte(white blood cell) that mainly stays in lymphatic tissue (e.g., the lymph nodes) and is active in immune responses, including the production of antibodies.
A type of white blood cell present in the blood, lymph and lymphoid tissues; primarily responsible for immune responses (see also B lymphocytes; CD4+ (CD8+) T lymphocytes; T lymphocytes).
Small white blood cells that are uniform in appearance, but very diverse in function. Collectively, they are responsible for antibody production, direct cell-mediated killing of virus-infected cells and tumor cells, and for the regulation of virtually every other component of the mammalian immune system.
white blood cells: there are two main classes - T lymphocytes (responsible for B-cell stimulation and cell mediated immunity) and B lymphocytes (responsible for antibody production).
a white blood cell present in the blood, lymph and lymphoid tissue that is essential in immune defense.
A nongranular type of white blood cell. There are two forms: the T-lymphocyte and the B-lymphocyte.
A variety of white blood cells (immune cells), that are formed in bone marrow and the thymus. These cells congregate in the lymph nodes and other organs, and travel throughout the body in lymph fluid or the bloodstream.
a type of white blood cell produced in the lymphoid organs that is primarily responsible for immune responses. Present in the blood, lymph and lymphoid tissues. (See also B cell and T cell.)
Type of white blood cell. Lymphocytes help fight infection.
Related Topic"...The B-lymphocytes are primarily responsible for antibody production..."
A specific type of immune cell that can cause tissue damage in the late phase of an allergic reaction.
white blood cell intended to ward off infection
a T-cell or B-cell, white blood cells responsible for immune defense.
A type of white blood cell that has a role in the immune response.
a particular type of white blood corpuscle; B lymphocytes arise in bone marrow; lymphocytes in the thymus develop into T-cells.
a white blood cell present in the blood, lymph, and lymphoid tissue; the two major types are T cells and B cells.
A type of white blood cell that directs the body's immune response; divided into two forms, B cells and T cells.
type of immune cell that originates from stem cells and differentiates in lymphoid tissue (such as the thymus or bone marrow); lymphocytes comprise 20% to 30% of the white blood cells in human blood.
One major group of white blood cells. B-lymphocytes directly attack virus-infected cells and other foreign cells, such as cancer cells.
Type of white blood cell with a number of roles in the immune system, including antibody production, attacking and destroying foreign cells (including some cancer cells), and producing substances that can kill cancer cells.
A type of white blood cell found in the body's lymph, a clear fluid that flows through the body and has an important function in defending the body against disease
A general class of white blood cells that are important components of the immune system of vertebrates.
A type of white blood cell that is important in the formation of antibodies. Doctors can monitor the health of AIDS patients by measuring the number or proportion of certain types of lymphocytes in the patient's blood.
A type of white blood cell that is important in the formation of antibodies and that can be used to monitor the health of AIDS patients.
White blood cell. Those that develop in the bone marrow are called B cells and those that develop in the thymus are called T cells. The B cells make the antibodies that are important in pemphigus.
A type of white blood cell involved in the immune response. See also B- and T cells.
A type of white blood cell. Lymphocytes have a number of roles in the immune system, including the production of antibodies and other substances that fight infection and diseases.
white blood cells that mature and reside in the lymphoid organs and are responsible for the acquired immune response (see IMMUNE SYSTEM). The two major types of lymphocytes are T CELLS and B CELLS.
cells of your immune system.
Type of leukocyte (white blood cell) that mainly resides in lymphatic tissue (e.g., the lymph nodes) and is active in immune responses, including the production of antibodies; two types include B cells and T cells
(LIHM-fo-cit) A type of white blood cell lacking large granules in the cytoplasm that plays a central role in immunity.
Leukocyte with a large round nucleus and usually a small cytoplasm. Specialized types of lymphocytes have enlarged cytoplasms and produce antibodies. Other specialized lymphocytes are important in cellular immune responses.
A type of white blood cell. Lymphocytes are responsible for certain types of immunity; they also produce antibodies and other substances that fight infection and disease.
A lymphocyte is any of a group of white blood cells of crucial importance to the adaptive part of the body's immune system. The adaptive portion of the immune system mounts a tailor-made defense when dangerous invading organisms penetrate the body's general defenses.
A variety of leukocyte or white blood cell that is important to the immune response and that arises in the lymph nodes. Lymphocytes can be large or small, and are round, nongranular, and classified as either T- or B-lymphocytes.
a type of white blood cell (e.g., T-cell, B-cell, natural killer cell) that plays a part in immune defense.
White blood cells that kill viruses and defend against the invasion of foreign material. These cells mediate the specificity of immune responses. See B cell and T cell. lymphoma: Cancer of lymphocytes or the lymphoid system (e.g., Hodgkin's disease, non-Hodgkin's lymphoma).
White blood cells of the immune system; the two types of lymphocytes are T cell (CD8 and CD4) and B cell; kills and destroys foreign pathogens entering the body (bacteria, viruses, parasites and fungi).
The diverse set of white blood cells (each with different functions) that are responsible for immune responses. There are two main types: B-cells (responsible for producing antibodies) and T-cells (which orchestrate all aspects of the immune response and carry out specialized functions such as destroying cells infected with pathogens). The cells are produced in the bone marrow and thymus, respectively.
A motile cell formed in tissues such as the lymph nodes, that functions in the development of immunity.
A lymphocyte is a type of white blood cell present in the blood. A cell is the smallest, most basic unit of life, that is capable of existing by itself. White blood cells help protect the body against diseases and fight infections.
A type of white blood cell responsible for the antigen-specific reactions of the immune system. The major classes of lymphocytes are B-cells and T-cells.
A type of white blood cell subdivided into T-cells and B-cells. T-cells provide cellular immunity and B-cells form antibodies. T-cells are responsible for GVHD.
Lymph cell or white blood corpuscle without cytoplasmic granules.
A type of white blood cell that helps protect the body from invading organisms. T-cells are a kind of lymphocyte that causes Graft Versus Host Disease.
A type of white blood cell that is also a B-cell and produces antibodies.
A small white blood cell that plays a major role in defending the body against disease. There are two main types of lymphocytes: B cells, which make antibodies that attack bacteria and toxins, and T cells, which attack body cells themselves when they have been taken over by viruses or become cancerous.
White blood cell that plays an important role in immunological reactions.
A white blood cell that fights infection and disease.
This is a white blood cell that is in charge of starting antigen specific immunity responses. There are many types of lymphocytes in the immune family. These consist of T cells, B cells, granulocytes, basophils, mast cells, eosiniophils, Natural Killer Cells, etc. Each cell type has a CD designation. (See guide to interpret the results of the reproductive immunophenotype.
Lymphocytes are a variety of white blood cells present in blood, lymph nodes, spleen, thymus gland, gut wall and bone marrow. Important to the immune system, they produce circulating antibodies and T-lymphocytes, which are primarily responsible for cell-mediated immunity and can differentiate into helper, killer or suppressor cells.
A major class of white blood cells - Includes T cells, B cells, and other cell types important in the immune response.
Small cell with virtually no cytoplasm, found in blood, in all tissue, and in lymphoid organs, such as lymph nodes, spleen, and Peyer's patches, and bears antigen-specific receptors.
a type of white blood cell of the immune system. T cells and B cells are lymphocytes that look similar under the microscope but have different functions.
A class of white blood cell, including T cells and B cells, which produces antibodies and other substances that fight disease and infection.
Cell present in the blood and lymphatic tissue, the main means of providing the body with immune capability. This is done by means of humoral immunity produced by B cells and cell-mediated immunity produced by T cells.
A type of white blood cell. Both T cells and B cells are types of lymphocytes.
A type of white blood cell. See B lymphocyte and T lymphocyte.
One of the three types of white blood cells (the others being granulocytes and monocytes), and the primary cell of the immune response, responsible for attacking antigens; divided into two forms, B cells and T cells.
A type of white blood cell that plays a role in defending the body against disease. .
a type of white blood cell, found in lymph nodes, associated with the immune system
type of white blood cell which arises in lymph glands, spleen, thymus, or marrow.
A lymphocyte is a type of white blood cell produced in lympathetic tissue.
A white blood cell. Present in the blood, lymph, and lymphoid tissue. See B Lymphocytes (B Cells); T Cells.
A type of white blood cell involved in udder immunity.
Type of white blood cell. Lymphocytes transmit chemical signals that help coordinate the immune system.
any one of a group of white blood cells of crucial importance to the adaptive part of the body's immune system, involved in fighting infection.
A white blood cell formed in lymphoid tissue throughout the body, e.g., lymph nodes, spleen, thymus, tonsils, and sometimes in bone marrow.
A mobile cell found in lymph and blood, and responsible for the development of specific immunity (e.g., to a disease).
White blood cells, including T cells, that help the body fight infection and disease.
Class of white cells generated in lymph glands; there are two main types, B and T, each with several functional forms; important in defence and immune responses.
A type of white blood cell that is part of the immune system.
A type of leukocyte (white blood cell) involved in the production of antibodies and the development of immunity.
A white blood cell that is important in the body's immune response. Because they contain nuclei, lymphocytes serve as an easily accessible source for genomic DNA. [Source: NHBLI/NCBI Glossary
A type of white blood cell that fights infection. See lymphatic system.
A type of white blood cell accounting for 20 - 25% of the white cells in humans. They are mostly non-phagocytic and actively mobile. They are continuously made in the bone marrow.
A type of white blood cell found in lymph, blood, and other specialized tissue such as bone marrow and tonsils, constituting between 22 and 28 percent of all white blood cells in the blood of a normal adult human being. B- and T-lymphocytes are crucial components of the immune system. The B-lymphocytes are primarily responsible for antibody production. The T-lymphocytes are involved in the direct attack against living organisms. The helper T-lymphocyte, a subtype, is the main cell infected and destroyed by the AIDS virus.
lymphocyte is a type of white blood cell in the human immune system. All lymphocytes derive from a common progenitor, which itself originates in the stem cells in the bone marrow. There are three types of lymphocytes â€“ T cells, B cells, and NK cells. [ edit
A lymphocyte is a type of white blood cell involved in the vertebrate immune system. There are two broad categories of lymphocytes, namely the large granular lymphocytes and the small lymphocytes. The large granular lymphocytes are more commonly known as the natural killer cells (NK cells).