Figure 1: Diagram comparing half sarcomeres of skeletal versus cardiac muscles in vertebrates. Note the major difference between the individual long length of nebulin molecules that run along the entire length of the thin filament in skeletal muscles versus the much shorter lengths of nebulette that extend for a short length of the thin filaments in cardiac muscles. Modified from a previous published Figure in the Journal of Cell Biology by Sanger and Sanger [2001] [30].