Assertion: rib's facet | /r/CapableOf | form cavity
Facets:
Source sentences:
text: Each outer border, at its superior angle, has a small facet, which with a similar facet on the manubrium, forms a cavity for the cartilage of the second rib; below this are four angular depressions which receive the cartilages of the third, fourth, fifth, and sixth ribs.