Assertion: esophagus | /r/HasAspect | four layers
Facets:
Source sentences:
text: The esophagus has four layers: tunic mucosa, tela submucosa, tunica muscularis, and the tunica adventitia.
text: The esophagus has four layers: tunic mucosa, tela submucosa, tunica muscularis, and the tunica adventitia.