So the nucleoplasm is the fluid inside the nucleus. The cytoplasm is this entire region found between the cell membrane and our nuclear membrane. Now, the inner membrane is also covered by a network of proteins known as intermediate filaments that extend throughout the entire nucleus, as shown by these extensions here. 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.