Assertion: muscle fiber's filament | /r/PartOf | myofibril
Facets:
value: within skeletal muscle fibres
type: LOCATION
Source sentences:
text: The actin and myosin filaments making up the myofibrils are organized into sarcomeres.
text: The spatial relation between the filaments that make up the myofibrils within skeletal muscle fibres is highly regular.