Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated muscle. The arrangement of the muscle's myofibrils produces the regular banding pattern. The wide A bands (dark green) are bisected by narrow H bands (red),which contain thick filaments of the protein myosin. The I bands (light green) contain thin filaments of the protein actin. According to the widely-accepted sliding filament theory,it is these thick and thin filaments that slide past one another during contraction,causing the H and I bands to narrow. Magnification: x16,300 when printed 10 centimetres high | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / King, Dr. Rosalind |
Bildgröße: | 3404 px × 5135 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |