Now, these network, or this network of extensions of intermediate filaments found inside the nucleus is known as the nuclear lamina. And the nuclear lantima basically plays the role of stabilizing the structure of the nucleus as a whole and they are also involved in gene expression. Now let's return to what a nuclear pores. Earlier we said that the entire nuclear membrane contains these holes known as nuclear pores. But what exactly is a nuclear pore? Well, a nuclear pore is not exactly an empty hold.