Small granular cells have the function of phagocytosis able to release electron dense granules by exocytosis when stimulated by antigen.
小颗粒细胞具有吞噬功能，在受到抗原刺激时可以胞吐方式释放细胞中的电子致密颗粒。
Using transmission electron - microscope, the electro dense granules of ANF in atria cells of rats in exhaustive exercise were studied.
对力竭大鼠心房肌细胞的心纳素电子致密颗粒进行了透射电镜观察。
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