sentence2_structure: Muscle type of cell function<>relies<>on microfilaments$$$microfilaments<>are<>the actin components of the cytoskeleton
sentence1: Properties of the muscle-cell cytoskeleton;
sentence2: Muscle type of cell function relies on microfilaments, which are the actin components of the cytoskeleton.
question: What type of cell function relies on microfilaments, which are the actin components of the cytoskeleton?