单词 | metamyelocyte |
释义 | metamyelocytemetamyelocyte[‚med·ə′mī·ə·lō‚sīt]metamyelocytemetamyelocyte[met″ah-mi´ĕ-lo-sīt″]met·a·my·el·o·cyte(met-ă-mī'el-ō-sīt),metamyelocyteA cell similar in shape, but slightly smaller (10 to 16 µm in diameter) than a myelocytes, which has a central or eccentric, indented kidney bean nucleus. The chromatin is usually coarsely clumped, and there is no nucleolus; the N:C ratio is 1.5:1 to 1:1. The abundant, pink or colourless cytoplasm may contain rare reddish-purple azurophilic (primary) granules and/or many fine, lilac, neutrophilic (secondary/specific) granules.The metamyelocyte corresponds to the M5 stage of a maturing granulocyte, which is morphologically between a myelocyte (M3 or M4) and a PMN (M6 or M7). met·a·my·e·lo·cyte(met'ă-mī'ĕ-lō-sīt)Synonym(s): juvenile cell. |
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