The coronary microcirculation.
D001160:Arterioles / Q000166:cytology; D002196:Capillaries / Q000166:cytology; D003326:Coronary Circulation; D003331:Coronary Vessels / Q000166:cytology / Q000502:physiology*; D006801:Humans; D008833:Microcirculation / Q000166:cytology / Q000502:physiology; D009206:Myocardium / Q000166:cytology