Assertion: abdominal wall | /r/HasProperty | 2 vertical muscles
Facets:
Source sentences:
text: The abdominal wall is composed of 5 paired muscles: 2 vertical muscles (the rectus abdominis and the pyramidalis) and 3 layered, flat muscles (the external abdominal oblique, the internal abdominal oblique, and the transversus abdominis muscles).