用体重 2 0 0克左右的正常大鼠 2 0只 ,在腰背部两侧对称部位取皮肤标本 ,制常规组织切片 ,相邻切片分别用琉董及阿尔新兰染色 ,光镜下观察细胞形态及分布 ,用图象分析仪测量细胞着色面积和胞浆内颗粒所含活性介质相对含量。结果 :肥大细胞是三层分布 ,浅筋膜分布最多。定量分析提示肥大细胞中肝素含量大于组织胺含量。 Twenty normal rats with a body weight of 200 grams were used to take skin specimens on both sides of the back of the back and to make routine tissue sections. The adjacent sections were stained with Liu and Dong, respectively. The morphology of the cells was observed under light microscope And distribution, with the image analyzer to measure the cell coloring area and the relative content of the active medium contained in the intracytoplasmic particles. Results: Mast cells are three-layer distribution, superficial fascia distribution. Quantitative analysis suggests that the amount of heparin in mast cells is greater than the histamine content.