Actin

Real World Example

Imagine trying to move a heavy piece of furniture across a room. Just like you need a strong push or pull to get that furniture moving, actin filaments provide the necessary force to contract muscles. In this analogy, your effort to move the furniture represents the actin filaments, which, when combined with another protein called myosin, create the force needed for muscle contraction, effectively moving your body's 'furniture'—your limbs.