Striated muscle, TEM

Numéro d’image : 13387625
Striated muscle, TEM
Striated muscle. Coloured transmission electron micrograph (TEM) of a longitudinal section through striated skeletal muscle. The striated banding-pattern of the muscle fibrils is seen. The fibrils run in parallel and between them runs sarcoplasmic reticulum (SR) that transmits nerve impulses to the fibrils. Here, the SR contains many mitochondria (purple). Within each fibril are contractile units called sarcomeres. A sarcomere has protein filaments of myosin and actin that slide over each other, thereby causing the whole muscle to contract. Skeletal muscle is responsible for voluntary muscle movement in the body. Magnification: x18, 000 when printed at 10 centimetres wide
Licence : Droits gérés
Crédit: Science Photo Library / Gschmeissner, Steve
Taille de l’image : 4330 px × 4572 px
Model Release : Non requis
Restrictions : -

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