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Cardiac muscle

Cardiac muscle

P154/0201

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Credit

SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY SUSUMU NISHINAGA / SCIENCE PHOTO LIBRARY

Caption

Cardiac muscle. Coloured scanning electron micrograph (SEM) of healthy heart (cardiac) muscle fibrils (yellow). Mitochondria (red) supply the muscle cells with energy. The muscle fibrils, or myofibrils, are crossed by transverse tubules (thin lines). These tubules mark the division of the myofibrils into contractile units (sarcomeres). Cardiac muscle is under subconscious control and continuously contracts to pump blood around the body without tiring. Magnification: x6665 when printed 10cm wide.

Release details

Model release not required. Property release not required.

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