myofilaments
/ˌmaɪoʊˈfɪləmənts/
noun
- The tiny protein fibers inside muscle cells that slide past each other to make muscles contract.
- Under a microscope, you can see the myofilaments arranged in repeating patterns.
- When you lift weights, the myofilaments in your arm muscles work together to generate force.
- Damage to the myofilaments can lead to muscle weakness and fatigue.