This paper provides a detailed stochastic analysis of leucocyte cell m
ovement based on the dynamics of a rigid body. The cell's behavior is
studied in two relevant anisotropic environments displaying adhesion m
ediated movement (haptotaxis) and stimulus mediated movement (chemotax
is). This behavior is modeled by diffusion processes on three successi
vely longer time scales, termed locomotion, translocation, and migrati
on.