Assertion: cardiac muscle's sarcomere | /r/CapableOf | extend to z line
Facets:
value: from z line
type: OTHER
Source sentences:
text: The thick (myosin) and thin (actin, troponin, and tropomyosin) protein filaments are arranged into contractile units, with the sarcomere extending from Z line to Z line, that have a characteristic cross-striated pattern similar to that seen in skeletal muscle.