Hemodynamic studies in the circle of Willis in the rat.
D000818:Animals; D001794:Blood Pressure / Q000502:physiology; D002560:Cerebrovascular Circulation / Q000502:physiology*; D002941:Circle of Willis / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology; D008297:Male; D051381:Rats; D014711:Vertebral Artery / Q000502:physiology*