The endothelial cell.
D000818:Animals; D001485:Basement Membrane / Q000502:physiology; D001808:Blood Vessels / Q000166:cytology*; D002196:Capillaries / Q000166:cytology; D002463:Cell Membrane Permeability; D003331:Coronary Vessels / Q000502:physiology; D004847:Epithelial Cells; D005112:Extracorporeal Circulation; D008168:Lung / Q000098:blood supply; D008208:Lymphatic System / Q000166:cytology*; D051379:Mice; D008854:Microscopy, Electron; D051381:Rats