cylindrical myofibrils

What Is The Function Of The Myofibrils?

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What Is The Function Of The Myofibrils? Myofibrils are bundles of protein filaments that contain the contractile elements of the cardiomyocyte, that is, the machinery or motor that drives contraction and relaxation. What is the basic functional unit of muscle? Sarcomeres. A sarcomere is the functional unit (contractile unit) of a muscle fiber. As illustrated

Are Myofibrils Are Composed Of A Chain Of Sarcolemma?

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Are Myofibrils Are Composed Of A Chain Of Sarcolemma? Within each muscle fiber are myofibrils—long cylindrical structures that lie parallel to the muscle fiber. … A skeletal muscle cell is surrounded by a plasma membrane called the sarcolemma with a cytoplasm called the sarcoplasm. A muscle fiber is composed of many fibrils, packaged into orderly