They're divided lengthwise into segments called sarcomeres, which contain two even tinier strands of protein — two different kinds of myofilaments called actin and myosin.
它们在纵向上被分成称为肌节的部分,其中包含两股更小的蛋白质——两种不同的肌丝称为肌动蛋白和肌球蛋白。
单词 | myofilament |
释义 |
myofilament
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