Fig. 6.
Cross-section of the optic nerve. (
A
) central retinal artery; (
V
) central retinal vein; (
S
) connective septa from the pia mater; (
P
) pia mater; (
An
) arachnoid cell nests; (
D
) dura mater; (
N
) axon bundles intermingled with glia cell nuclei.
