Cross Section Of Skeletal Muscle

It is typically used to describe the contraction properties of pennate muscles.
Cross section of skeletal muscle. This makes it very easy to see the nuclei at the edges of the fibers. This is a very low power view through a portion of an entire but small skeletal muscle. When skeletal muscle is cut in cross section you can appreciate all the cables pulling in the same direction.
Note the position of the nuclei in the cross sectioned fibers as well as the few longitudinally sectioned fibers present in the slide. The only place you re likely to see interlacing bundles of skeletal muscle is in the tongue. Most of the skeletal muscle cells commonly referred to as skeletal muscle fibers are cross sectioned.
Cross section of skeletal muscle. In muscle physiology physiological cross sectional area pcsa is the area of the cross section of a muscle perpendicular to its fibers generally at its largest point. A cross section of skeletal muscle displays large cylindrical fibers with multiple peripherally located nuclei a feature which is characteristic for skeletal muscle.
This is skeletal muscle cut transversely cross wise. Each muscle cell is surrounded by endomysium. Surrounding the entire muscle may be found remnants of the epimysium a layer of connective tissue that invests the entire muscle.
Note the delicate endomysium. However you cannot see the cross striations.