DON FAWCETT / SCIENCE PHOTO LIBRARY DON FAWCETT / SCIENCE PHOTO LIBRARY
A-band. The unfixed muscle was quickly frozen using liquid helium, then fractured and deep-etched. Cross bridges between the myosin and actin filaments are clearly visable. A fine axial periodicity can be seen in the actin filaments fo the I-band at the left of the figure. Enhancement of 9c3453.
Model release not required. Property release not required.