Retina Blood Vessel (image) Max-Planck-Gesellschaft Caption This image shows growing blood vessels in the retina of a mouse. Vessels grow from the center to the outer parts of un-supplied tissue. Credit MPI for Molecular Biomedicine. 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.