Cerebral Arterial Circulation (IMAGE) University of North Carolina Health Care Caption This shows cerebral arterial circulation showing the left brain hemisphere of a C57BL/6 mouse and the right hemisphere of BALB/c mouse. Note the difference typical for these strains in number of collaterals (red stars). Credit Image source: Faber lab at UNC. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.