[Electron microscopy studies on the venous valves in the venous plexus of the dog palatal mucosa].
D000818:Animals; D003593:Cytoplasm / Q000648:ultrastructure; D004285:Dogs; D004727:Endothelium / Q000648:ultrastructure; D008854:Microscopy, Electron; D009061:Mouth Mucosa / Q000098:blood supply*; D010159:Palate / Q000098:blood supply*; D014680:Veins / Q000648:ultrastructure*