Connective tissue in the perivascular spaces of subependymal capillaries of the spinal cord in the rabbit
Desaga, U.; Leonhardt, H.
Zeitschrift für Mikroskopisch-Anatomische Forschung 90(5): 801-815
1976
ISSN/ISBN: 0044-3107 PMID: 1031516 Document Number: 105734
The normal structure of the subependymal capillaries and venules of the spinal cord was studied in rabbit. The endothelial cells of the capillaries and venules are surrounded by an irregularly formed perivascular space, about 0.5 to 3.3 micrometer wide, which is delimited by an endothelial and glial basal lamina. The space contains a framework of collagen fibers. A period-acid-bisulfit-aldehydthionine-method (Specht) permits to find the perivascular connective tissue lightmicroscopically, while they can be identified by electron microscopy. The significance of the perivascular connective tissue is open to discussion. Structural and functional problems have been reviewed in this context.