Additional Supporting Material may be found in the online version of this article.

CNE_23104_sm_SuppMov.avi74201KSupporting Information Movie. Fluorescent beads' movement on the central canal surface. Fluorescent beads (2 μm) were deposited onto the central canal surface using a micropipette. After the preparation stabilizes, the beads located along the central canal move longitudinally. Occasional beads move rapidly back-and-forth as they become attached to the motile cilia.

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