Articular Facet of Tubercle of Eighth Rib

Description

The articular facet is the smooth, oval area found along the tubercle of the eighth rib. It articulates with the transverse costal facet of the eighth thoracic vertebra, forming the eighth costotransverse joint.

Overall, these articular facets on tubercles are only present on the first to tenth ribs, while the eleventh and twelfth ribs lack this bony feature.