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. Author manuscript; available in PMC: 2009 Jan 23.
Published in final edited form as: Comput Struct. 2007;85(11-14):763–774. doi: 10.1016/j.compstruc.2007.01.015

Fig. 1.

Fig. 1

(A) Electron micrograph of cilium showing longitudinal and transverse sections. (B) Detailed electron micrograph of a transverse section through a cilium showing the 9 + 2 microtubule structure and the internal structure of microtubules. (C) Micrograph: relative spacing between cilia. Sketch: two-layer structure of ASL. (Micrographs are copyright Gwen C. Childs, www.cytochemistry.net/Cell-biology/cilia.htm.)