What is the function of the inner envelope?

The inner envelope, also known as the inner nuclear membrane, surrounds the nucleus of a cell and plays a crucial role in maintaining the nucleus's shape and structural integrity. It serves as a barrier that regulates the exchange of materials between the nucleus and the cytoplasm through nuclear pores. Additionally, the inner envelope is involved in organizing chromatin and anchoring nuclear components, contributing to the overall function and regulation of gene expression within the nucleus.