Assertion: muscle fiber's filament | /r/HasProperty | attached
Facets:
Source sentences:
text: The Z-line or disk is where the thin filaments from opposite sarcomeres are attached.
text: Where thick filaments are attached end-to-end in the center of the A-band is the M-line .
text: Where thick filaments are attached end-to-end in the center of the A-band is the .