Myofibers (IMAGE) University of North Carolina Health Care Caption Myofibers, also known as muscle cells, the damage of which during congenital heart defects, could be the result of alternative splicing gone wrong. Credit Giudice Lab, UNC School of Medicine Usage Restrictions credit properly 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.