What is the name of the contractile protein fibres within muscle fibres?

The long, cylindrical, contractile portions of a muscle fiber, which are composed of even smaller myofilaments, are called .

List the components of a triad in skeletal muscle fibers

Dense connective tissue is composed of tightly packed layers of fibers made of the protein

What is the name for the bundles of skeletal muscle fibers in a whole muscle?Multiple choice question.FasciclesFasciaTendonsBursa

A muscle fiber will contract completely or not at all. This is known as the or principle.