A sarcomere contains both thin filaments, made up mostly of two light and twisty actin strands, and thick filaments, composed of thicker, lumpy-looking myosin strands.
肌节既包含细丝,主要由两条轻盈而扭曲的肌动蛋白链组成,也包含粗丝,由更厚、看起来块状的肌球蛋白链组成。
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