The molecular mechanism of wave propagation in cilia and eukaryotic
flagella is not completely understood.  Using the known spacing of dynein
and tubulin in the outer microtubules of cilia, I modeled how bending
along the length of a cilium changes the geometry inside the cilium.  With
a 2-dimensional model of 2 microtubules, I demonstrated that as a cilium
bends, the dyneins on one microtubule move relative to binding sites on
the adjacent microtubule.  I hypothesize that changes in the regions of
possible binding along a given cilium are responsible for wave propagation
in cilia.