Myofilament
The two protein filaments of myofibrils in muscle cells / From Wikipedia, the free encyclopedia
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Myofilaments are the three protein filaments of myofibrils in muscle cells. The main proteins involved are myosin, actin, and titin. Myosin and actin are the contractile proteins and titin is an elastic protein. The myofilaments act together in muscle contraction, and in order of size are a thick one of mostly myosin, a thin one of mostly actin, and a very thin one of mostly titin.[1][2]
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Myofilament | |
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Details | |
Part of | Myofibril |
Identifiers | |
Latin | myofilamentum |
TH | H2.00.05.0.00006 |
FMA | 67897 |
Anatomical terms of microanatomy |
Types of muscle tissue are striated skeletal muscle and cardiac muscle, obliquely striated muscle (found in some invertebrates), and non-striated smooth muscle.[3] 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.