| 释义 |
plasma cell
plasma celln. Any of various short-lived cells that develop from activated B cells and secrete large numbers of antibodies. They are found chiefly in the bone marrow, spleen, and lymph nodes. Also called plasmacyte.plas′ma cell`
n. an antibody-secreting cell, derived from B cells, that plays a major role in antibody-mediated immunity. Also called plas•ma•cyte (ˈplæz məˌsaɪt) [1885–90] plasma cell A cell that produces antibodies as part of an immune response. B cells develop into plasma cells. See Note at antibody.Thesaurus| Noun | 1. |  plasma cell - a cell that develops from a B lymphocyte in reaction to a specific antigen; found in bone marrow and sometimes in the bloodplasmacytelymph cell, lymphocyte - an agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infectionplasmablast - the precursor of a plasma cell |
Plasma Cell
plasma cell[′plaz·mə ‚sel] (histology) plasmacyte Plasma Cell a type of cell of the connective and hematopoietic tissues. Plasma cells are formed in vertebrates and man from hematopoietic stem cells of the bone marrow. Their principal function is the production of antibodies. Plasma cells are found in lymphatic and hematopoietic tissues, in serous membranes, and in the connective tissues of the organs of digestion and respiration; they accumulate during immunological reactions, for example, to foreign tissues and infection. They are round and have an eccentric nucleus that contains dense clumps of chromatin. The cytoplasm contains large amounts of ribonucleic acid and therefore stains strongly with basic stains. The only region of a plasma cell that absorbs little stain is near the nucleus, where the Golgi complex and the centrosome are located. The plasma cell also exhibits a well-developed endoplasmic reticulum and an abundance of ribosomes, which are characteristic of cells that actively synthesize and secrete proteins. N. G. KHRUSHCHOV plasma cell
plas·ma cellan ovoid cell with an eccentric nucleus; the cytoplasm is strongly basophilic because of the abundant RNA in its endoplasmic reticulum; plasma cells are derived from B lymphocytes and are active in the formation and secretion of antibodies. Synonym(s): plasmacyteplasma celln. Any of the antibody-secreting cells found in lymphoid tissue and derived from B cells upon lymphokine stimulation and reaction with a specific antigen. Also called plasmacyte.plas·ma cell (plaz'mă sel) An ovoid cell with an eccentric nucleus having chromatin arranged like a clock face or spokes of a wheel; the cytoplasm is strongly basophilic because of the abundant RNA in its endoplasmic reticulum; plasma cells are derived from B lymphocytes and are active in the formation of antibodies.
Synonym(s): plasmacyte. plasma cell One of a number of large oval cells, cloned from a selected B LYMPHOCYTE, that synthesize large quantities of the required IMMUNOGLOBULIN (antibody).Plasma cellType of white blood cell that produces antibodies; derived from an antigen-specific B-cell.Mentioned in: Multiple Myeloma, Waldenström's Macroglobulinemiaplas·ma cell (plaz'mă sel) Ovoid cell with an eccentric nucleus; derived from B lymphocytes and active in formation and secretion of antibodies. LegalSeeCellFinancialSeecellAcronymsSeePCplasma cell
Related to plasma cell: mast cell, Lymphocytes, plasma cell myeloma, plasma cell mastitis, plasma cell dyscrasiaSynonyms for plasma cellnoun a cell that develops from a B lymphocyte in reaction to a specific antigenSynonymsRelated Words- lymph cell
- lymphocyte
- plasmablast
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