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<p>the <a href="page.php?w=lamellipodium">lamellipodium</a> or thin protrusions called <a href="page.php?w=filopodia">filopodia</a>. Here, <a href="page.php?w=actin">actin</a> polymerization in the direction of migration allows cells to extend the leading edge of the cell and to attach to the surface. At the rear of the cell, adhesions are disassembled and bundles of actin <a href="page.php?w=microfilaments">microfilaments</a>, called <a href="page.php?w=stress_fiber">stress fiber</a>s, contract and pull the trailing edge forward to keep up with</p><p>
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