FIG. 5.

Transmission electron micrscope images showing ultrastructure of ventricular cilia 7 days after sham procedure (A), compared to age-matched injured cilia (B). The 9+2 microtubule arrangement is shown at higher magnification of cilia in transverse sections (see insets). m, mitochondria; mv, microvilli. In order to demonstrate the ultrastructure of the cilia, it was necessary to locate comparable intact ependymal cells. Because of the high magnification, only a part of an individual ependymal cell in an injured and sham brain slice is shown. Scale bar is 500 nM.