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Scanning electron microscopy of a human B lymphocyte. We can see the mitochondria, a very large nucleus, and cytoplasmic extensions (kinds of tentacles) which are used by the lymphocytes to move.
Un lymphocyte B humain, en microscopie électronique. On peut apercevoir les mitochondries, un noyau très volumineux, et des prolongements cytoplasmiques (sortes de tentacules) qui servent au lymphocytes à se déplacer.