细胞动力学(Cytokinetics)是研究细胞运动变化规律的科学。细胞动力学研究的范围相当广泛,例如细胞的增殖、分化、游走、死亡等。细胞增殖周期,简称为细胞周期(Cell cycle),其属于细胞动力学范畴。从第一次细胞分裂结束起到第二次细胞分裂完了为细胞周期。一个细胞周期所需时间为细胞周期时间 Cytokinetics is the science that studies the laws of cell movement. The scope of cell dynamics research is quite extensive, such as cell proliferation, differentiation, migration, death and so on. The cell proliferation cycle, abbreviated as the cell cycle, belongs to the category of cell dynamics. From the end of the first cell division to the second cell division, the cell cycle is completed. The time required for a cell cycle is the cell cycle time