Skeletal Muscle

 Skeletal Smooth Cardiac Lab 5G Lab 6G

   

How would you characterize this muscle? The nuclei are peripheral, striations are present, and there is no branching of the muscle fibers. Even when you cannot visualize striations, the peripherally placed nuclei allow you to differentiate skeletal muscle from both cardiac and smooth muscle. The arrangement of the myofilaments within the myofibrils account for the striations we see in skeletal and smooth muscle. Click here for for an illustration of this arrangement and   Click here for animation of muscle contraction at the ultramicroscopic level.

[WebSlide] Muscle_WSU; Skeletal muscle (WSU_1_041)