Summary
The fine structure of the small vessels of the subarachnoid spaces in the rat and mouse cerebral and cerebellar cortices was examined. Small vessels with lumen under 7 μ and whose walls consisted of a single layer of endothelial cells were found. These vessels are regarded as true capillaries.
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Hirano, A., Cervós-Navarro, J. & Ohsugi, T. Capillaries in the subarachnoid space. Acta Neuropathol 34, 81–85 (1976). https://doi.org/10.1007/BF00684947
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DOI: https://doi.org/10.1007/BF00684947