[Ultrastructure of testicular capillaries as a permeability barrier].
D000368:Aged; D000818:Animals; D001814:Blood-Testis Barrier; D002196:Capillaries / Q000502:physiology / Q000648:ultrastructure; D002199:Capillary Permeability; D006801:Humans; D008297:Male; D008855:Microscopy, Electron, Scanning; D008875:Middle Aged; D051381:Rats; D011919:Rats, Inbred Strains; D013737:Testis / Q000098:blood supply*