Assertion: cardiac muscle cell | /r/HasAspect | striation
Facets:
Source sentences:
text: They differ from skeletal muscle in that it is an involuntary contraction, but they are similar in that they both have striations.
text: Cardiac-muscle cells have striations, or stripes, because they are composed of two different types of fibers in bands, and they are closely interconnected with structures called intercalated discs.