Assertion: muscle fiber's sarcomere | /r/HasProperty | the region
Facets:
Source sentences:
text: The sarcomere, the region from one Z-line to the next Z-line, is the functional unit of a skeletal muscle fiber.
text: The sarcomere, the region from one Z-line to the next Z-line, is the functional unit of a skeletal muscle fiber.
text: The sarcomere is the region in which sliding filament contraction occurs.