Protein filaments that bundled together make the fibers that bundled together make muscles.
The longitudinally arranged contractile elements, composed of actin and myosin of a skeletal muscle.
Contractile organelles composed of myofilaments.
A long thread of striated muscle fibre.
One of many contractile filaments that make up a fiber of a striated muscle.
One of numerous contractile filaments found within the cytoplasm of striated muscle cells. When viewed under a microscope myofibrils show alternating bands of high and low refractive index, which give striated muscle its characteristic appearance.
A microscopic fibril found in muscle cells, grouped into bundles that run parallel to the long axis of the cell. It is made of sarcomeres placed end-to-end, which in turn are made of myofilaments of myosin and actin, the contractile proteins.