Assertion: muscle fiber's filament | /r/CapableOf | leave central region of the a band
Facets:
Source sentences:
text: Thin filaments do not extend all the way into the A bands, leaving a central region of the A band that only contains thick filaments.
text: Thin filaments do not extend all the way into the A bands, leaving a central region of the A band that only contains thick filaments.