Nerves of the Mammary Gland (image) Johns Hopkins Medicine Caption Immature mammary glands from a female (left) and male (right) mouse after the nerve cells (yellow) have retracted from the male tissue. Mammary gland cells labeled in blue. Credit Yin Liu Usage Restrictions None 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.