What structure helps form new cells within the cytoskeleton?

The formation of new cells within the cytoskeleton is primarily associated with microfilaments. Microfilaments, which are made of actin filaments, play a crucial role in cellular processes such as cell division and the maintenance of cell shape. During cytokinesis, the process by which a single cell divides into two daughter cells, microfilaments assemble into a contractile ring at the cell's equator. This ring contracts, leading to the pinching of the cell membrane and ultimately the formation of two separate cells.

Microfilaments also contribute to cellular movements and can be involved in the transportation of materials within the cell, thereby playing a significant role in the overall dynamics of cell growth and development. Their flexibility and ability to polymerize and depolymerize rapidly are essential for these processes.