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单词 leucocyte
释义
leucocyte

Biology
  • A colourless cell with a nucleus, found in blood and lymph. Leucocytes are formed in lymph nodes and red bone marrow and are capable of amoeboid movement. They can produce antibodies and move through the walls of vessels to migrate to the sites of injuries, where they surround and isolate dead tissue, foreign bodies, and bacteria. There are two major types: those without granules in the cytoplasm, such as lymphocytes and monocytes (see agranulocyte), and those with granular cytoplasm (granulocytes), which include basophils, eosinophils, and neutrophils.


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