[Mitoses in hypertrophied smooth muscle tissue of the rat posterior vena cava].

Injection of colchicin to rats exposed mitotic dividing leukomyocytes in the hypertrophied muscle tissue of the posterior vena cava. Under these conditions mitotic index didn't exceed 1:1000-1:10000. Many of the cells were in the prophase, this being apparently associated with prolonged mitosis in the leiomyocytes of the vein.