Confocal microscopy (IMAGE) Keck School of Medicine of USC Caption Confocal microscopy image of an adult zebrafish head with neural crest-derived cells in red. The Crump lab has used single-cell sequencing to understand how these cells build and repair the head skeleton, with implications for understanding human craniofacial birth defects and improving repair of skeletal tissues. Credit Image by Hun-Jhen Chen/Crump Lab Usage Restrictions none 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.