This is an example of a Skeletal muscle (longitudinal section) viewed under HPO magnification… The numbered parts are: 1. MUSCLE FIBERS = Fibers are packed into regular parallel bundles. Long and cylindrical in shape. 2. NUCLEI = Muscle cells and muscle fibers have many nuclei because these cells arise from a fusion of myoblasts. 3. STRIATIONS = These are caused by the regular arrangement of contractile proteins (actin and myosin) and can be used to differentiate from the other types of muscle tissues. FUNCTIONS: Skeletal muscles are muscles attached to bones or skin that facilitate voluntary and controlled locomotion.
This is an example of a Skeletal muscle (longitudinal section) viewed under HPO magnification… The numbered parts are: 1. MUSCLE FIBERS = Fibers are packed into regular parallel bundles. Long and cylindrical in shape. 2. NUCLEI = Muscle cells and muscle fibers have many nuclei because these cells arise from a fusion of myoblasts. 3. STRIATIONS = These are caused by the regular arrangement of contractile proteins (actin and myosin) and can be used to differentiate from the other types of muscle tissues. FUNCTIONS: Skeletal muscles are muscles attached to bones or skin that facilitate voluntary and controlled locomotion.