Arcs: curved microfilament bundles beneath the dorsal surface of the leading lamellae of moving chick embryo fibroblasts.
D000818:Animals; D002462:Cell Membrane / Q000648:ultrastructure; D002465:Cell Movement; D002467:Cell Nucleus / Q000648:ultrastructure; D002642:Chick Embryo; D003593:Cytoplasm / Q000648:ultrastructure; D003599:Cytoskeleton / Q000648:ultrastructure*; D005347:Fibroblasts / Q000648:ultrastructure*; D008854:Microscopy, Electron