They go past one another, shortening the sarcomere but maintaining the length of the filaments.
What purpose do the filaments serve?
Microtubules, actin filaments, & intermediate filaments make up the cytoskeleton of a cell. These elements aid in the organization of the cell's components and give its cell its form. These provide the foundation for cellular division & movement too though.
From what is filament made?
Traditional filaments are coils of wire that are housed inside glass bulbs and look somewhat like springs. Due to its high melting point, tungsten is typically used in their construction. The ability of tungsten to withstand heat is essential to the operation of filament lamps.
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