The centromeres move toward the poles in

During mitosis, the centromeres themselves do not move toward the poles of the cell. Instead, the sister chromatids, which are joined at the centromere, are pulled apart toward opposite poles of the cell by the mitotic spindle during anaphase.

To correct the statement: The movement of the sister chromatids toward the poles of the cell occurs in Anaphase of mitosis. During this phase, the microtubules of the mitotic spindle shorten, pulling the chromatids apart. This separation ensures that each daughter cell receives an identical set of chromosomes.