cilium

Description:

Higher magnification that shows the bilayer nature of the ciliary membrane (cm), plasma membrane (pm) and the outer (oam) and inner (iam) alveolar sac membranes of the alveoli (al). The 9-doublet + 2-singlet microtubular axonemal system of the cilium is seen in cross section (also see Figure 8). Two dynein arms (arrowheads) extend from each doublet. Cacodylate buffered fixative. EM taken on 9/27/68 by R. Allen with Philips 300 TEM. Neg. 60,400X. Bar = 0.1 micron. This image is available in Richard Allen's collection.