Female and Male Axons (IMAGE) University of Pennsylvania School of Medicine Caption Top: Axons in female and male subject brains Bottom: damaged axons in male and female brains after injury Credit Penn Medicine Usage Restrictions n/a License Original 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.