Are the arachnoid villi really the main drainage route for the cerebrospinal fluid into the blood stream? An electron microscopic study.
D000818:Animals; D001099:Arachnoid / Q000648:ultrastructure*; D001812:Blood-Brain Barrier; D002462:Cell Membrane / Q000648:ultrastructure*; D002555:Cerebrospinal Fluid / Q000502:physiology*; D008251:Macaca; D008854:Microscopy, Electron; D008871:Microvilli / Q000648:ultrastructure*; D051381:Rats