lamellipods
Lamellipods are broad, flattened, sheet-like extensions of the cell membrane that are characteristic of motile animal cells, particularly fibroblasts and some types of protozoa. They are dynamic structures that play a crucial role in cell migration, adhesion, and sensing the environment. These structures are formed by the rapid polymerization of actin filaments at the leading edge of the cell. The actin network within the lamellipod is highly branched and mesh-like, driven by proteins such as Arp2/3 complex.
The formation and retraction of lamellipods are tightly regulated processes involving signaling pathways that respond to