inferior costal facet of eleventh thoracic vertebra
A zone of bone organ forming the inferior demi-facet on the posterolateral body of the eleventh thoracic vertebra. It is present when T11 participates in a shared costal articulation with the head of rib 11 alongside the superior costal facet of T12; however, T11 more typically bears a single complete costal facet for the head of rib 11.