Fig. 1
From: Proceedings of the 2nd BEAT-PCD conference and 3rd PCD training school: part 1
a A Transmission electron microscopy image of a cilium in cross section. b Electron tomography image of a cilium in cross section with key features coloured (Yellow - microtubular doublet, blue - outer dynein arm, pink - inner dynein arm, green - dynein regulatory complex, orange – central complex). c Electron tomogram image of a normal microtubular doublet with improved resolution following computer averaging when compared to the microtubular doublet in image A circled in red. d Averaged microtubular doublet tomogram from a subject with PCD due to an inner and outer dynein arm defect