Coloured transmission electron micrograph (TEM) of a longitudinal section through skeletal, or striated, muscle. The dark diagonal lines mark the borders of sarcomeres, the smallest functional units of striated muscle. Striations within the sarcomeres are due to the muscle fibrils. These are made up of the proteins actin and myosin. Muscles contract when actin slides over the myosin. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Dr. Christopher B. Jackson / IKELOS GmbH |
Taille de l’image : | 4000 px × 2650 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |