Assertion: muscle fiber's sarcomere | /r/HasProperty | skeletal muscle 4
Facets:
Source sentences:
text: The striation are produced by the alignment of the contractile fibers of myofibrils, producing an alternating pattern of light (I=isotropic) and dark (A=anisotropic) bands, defining the contractile units, the sarcomere (Skeletal Muscle 4).