myofilament
/ˌmaɪoʊˈfɪləmənt/
noun
- A tiny thread-like structure in a muscle cell that helps the muscle contract.
- Under a microscope, you can see the myofilaments that make up the muscle fibers.
- When you exercise, the myofilaments in your arm muscles slide past each other to create movement.
- Scientists study how myofilaments work to understand how muscles get stronger.