FIGURE 10.

Histogram of diffusion coefficients of individual trajectories on the acrosomal region of (A) testicular and (B) cauda epididymidal spermatozoa. Note the different scale for the diffusion coefficients. Gaussian fits to the data and mean values of the diffusion coefficients are shown. The insets show typical trajectories, the upper inset in A represents an almost immobile molecule, and the lower trajectory a slowly moving molecule. These measurements were done by labeling the cells from solution.