Nucleus envelope. Nucleus, nucleoplasm. Cytoplasm. Note=In the nuclear envelope during interphase to metaphase. And in the nucleoplasm and cytoplasm during anaphase and telophase.
The nuclear envelope is a membrane system which surrounds the nucleoplasm of eukaryotic cells. It is composed of the nuclear lamina, nuclear pore complexes and two nuclear membranes. The space between the two membranes is called the nuclear intermembrane space.