A myofibril is a muscle fiber composed of actin and myosin filaments, arranged in longitudinal bundles.
La miofibrilla es una fibra muscular compuesta por filamentos de actina y miosina, dispuestas en haces longitudinales.
| Front | myofibril |
|---|---|
| Back | A fibril collectively arranged in longitudinal bundles in muscle cells (fibers); composed of thin filaments of actin and a regulatory protein and thick filaments of myosin. |
Tags: ch.50
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