Assertion: vertebral column's curve | /r/HasAspect | their concavities
Facets:
value: in front
type: LOCATION
Source sentences:
text: The thoracic and pelvic curves have their concavities in front, and thus enlarge the spaces in which the thoracic and pelvic viscera are contained; the two other curves are convex anteriorly, and thus afford support to the parts above them.