Cannabinoids Exacerbate Alcohol-Induced Brain Defects. (IMAGE) University of North Carolina Health Care Caption Images are stained sections of fetal mouse brains. (Left) The brain of a control mouse. (Right) The brain of a mouse exposed to alcohol and a cannabinoid on the 8th day of pregnancy. Note the enlarged cerebral ventricle caused by the loss of the midline septal region (black arrow). Credit UNC School of Medicine 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.