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| The P-face of the ciliary membrane at the base of the cilium has 9 triple rows of IMPs in register (arrows) with the 9 doublets of the internal axoneme. It is thought that these IMPs may be sites of calcium influx into the base of the cilium for regulating ciliary activity. arrowheads, trichocyst docking sites. EM taken on 1/6/88 by C. Schroeder with Zeiss 10A TEM. Neg. 19,800X. Bar = 0.25µm. |
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