(Movie of a Crawling Neutrophil Chasing a Bacterium; Description
by Tom Stossel)
due to their small size, cell's operate at low Reynold's number, where inertial
effects are negligble.
cells move, using forces generated by polymerization of cytoskeloton filaments
(such as actin)
- In vitro- spherical
latex beads coated with protein ActA in solution of Actin and ATP