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Myofilaments are the filaments of myofibrils, constructed from proteins, principally myosin or actin. Types of muscle are striated muscle (such as skeletal muscle and cardiac muscle), obliquely striated muscle (found in some invertebrates), and smooth muscle. Various arrangements of myofilaments create different muscles. Striated muscle has transverse bands of filaments. In obliquely striated muscle, the filaments are staggered. Smooth muscle has irregular arrangements of filaments. ==Types of myofilaments== There are three different types of myofilaments: thick, thin, and elastic filaments. *Thick filaments consist primarily of the protein myosin. Each thick filament is approximately 15 nm in diameter, and each is made of several hundred molecules of myosin. *Thin filaments, 7 nm in diameter, consist primarily of the protein actin. All thin filaments are attached to the Z-line. *Elastic filaments, 1 nm in diameter, are made of titin, a large springy protein. They flank each thick filament and anchor it to the Z-line, the end point of a sarcomere. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「myofilament」の詳細全文を読む スポンサード リンク
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