478713.fig.002a
(a)
478713.fig.002b
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478713.fig.002c
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Figure 2: Determination of basal ciliary beat frequency (CBF). (a) Scanning electron microphotography of ciliated epithelial cells in culture. (b) Power spectrum of ciliary activity obtained from a ciliated cell in culture with a CBF peak of 13.5 Hz. (c) Distribution of basal CBF in cultures of human adenoid epithelium. Basal CBF follows a Gaussian distribution. 44.4% of the cells have a basal CBF between 10 and 12 Hz.