Assertion: blood vessel | /r/HasAspect | appreciable peristalsis
Facets:
Source sentences:
text: Blood vessels do not actively engage in the transport of blood (they have no appreciable peristalsis).
text: Blood vessels do not actively engage in the transport of blood (they have no appreciable peristalsis), but arteries—and veins to a degree—can regulate their inner diameter by contraction of the muscular layer.