Extracting choroid plexus tissue (IMAGE) Boston Children's Hospital Caption Choroid plexus from the lateral ventricle (LV), third ventricle (3V), and fourth ventricle (4V) of the developing, adult, and aging mouse brain. Credit Dani H, Herbst RH et al. Cell 2021 Apr 30; DOI 10.1016/j.cell.2021.04.003. Usage Restrictions Please credit as indicated. 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.