More trip calculations. 1  driving time from Rome, Italy to Lucca, Italy. 2  reverse drive distance from Lucca, Italy to Rome, Italy. 3  halfway between Rome, Italy and Lucca, Italy. 4  hotels near Lucca, Italy. 5  flight distance from Rome, Italy to Lucca, Italy. 6  flight time from Rome, Italy to Lucca, Italy.
Surrounding each muscle fiber (cell) is a delicate external lamina composed primarily of reticular fibers. This external lamina is produced by the muscle fiber and, when observed through the light microscope, cannot be distinguished from the cell membrane of the muscle fiber, the sarcolemma.
1 Each muscle fibre ( muscle cell ) is covered by a plasma membrane sheath which is called the sarcolemma. 2  Tunnel-like extensions from the sarcolemma pass through the muscle fibre from one side of it to the other in transverse sections through the diameter of the fibre.keletal muscles consist of 100,000s of muscle cells (also known as muscle fibers) that perform the functions of the specific muscle of which they are a part.