title: [Connective tissue in the perivascular spaces of subependymal capillaries of the spinal cord in the rabbit].
abstract: 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.
mesh_terms: D000818:Animals; D001485:Basement Membrane / Q000648:ultrastructure; D002196:Capillaries / Q000033:anatomy & histology / Q000648:ultrastructure; D003094:Collagen; D003238:Connective Tissue / Q000033:anatomy & histology* / Q000648:ultrastructure; D004727:Endothelium / Q000648:ultrastructure; D011817:Rabbits; D013116:Spinal Cord / Q000098:blood supply*
chemical_list: D003094:Collagen
vernacular_title: Bindegewebe in perivaskulären Räumen subependymaler Kapillaren des Rückenmarkes beim Kaninchen.