Optic nerve cross section, normal

Source 2.5 year male Doberman pinscher, OD
Fixative Zenker's
Stain Luxol fast blue
Notes Normal tissue; the myelin in the nerves picks up the blue stain
See also azure II-methylene blue
higher magnification, Luxol fast blue
Legend arrow - points to extensions of pia mater which form the septae (along with astrocytes) that surround each fascicle, F - fascicle, P - pia mater surrounding the entire nerve
Illustration Click on image to see larger picture