In some vespertilionids (such as Eptesicus, Perimyotis, Myotis, Lasionycteris), the ulna has a small or absent olecranon process, is unfused at the semilunar notch but fused slightly more distally along the shaft beneath or just distal to the semilunar notch, and contributes its own separate, small articular facet to the semilunar notch.
Adjacent to the glenoid facet is a relatively large dorsal articular facet for the greater tuberosity of the humerus.
At each level the articular facet of each superior articular process passes deep (or more anterior) to the inferior articular process of the vertebrae immediately above (Moore & Dalley 2006, Rosse & Gaddum-Rosse 1997, Standring 2005) (Figure 2).
In addition, the similarity in coronal plane orientation of the dorsal surface of the inferior articular facet and the adjacent laminae adds to this difficulty: distinguishing between the lamina and the projecting aspect of the inferior articular facet using palpation would be problematic.
the superior articular facet
and the anterior tubercle of C1
Displacement of the interfacetal joint with rotational deformity may also produce a "double-appearance" of articular facets
above the level of injury reminiscent of a "bow tie".
However, he noted that it differed in one primary aspect of its configuration-the transition in inter-vertebral articular facets
occurred at a higher level of the spine that than normally occurs in modern humans.
The PCS shrew does not have an enlarged condylar process and laterally offset articular facets
separated by a groove from the body of the dentary; therefore, it differs from the Nectogalini.
antoni due to the fact that the trunk vertebrae of the fossil specimen possess neural spines that are not strongly indented anteriorly and posteriorly, as well as articular facets
that are broad, flat, and round in dorsal view.
Cervical spondylolysis is, however, much more rare than its lumbar counterpart and is described as a well-corticated cleft between the superior and inferior articular facets
of the articular pillar of the cervical spine.
The "hamburger bun sign" (Figure 7) refers to the normal relationship between the superior and inferior articular facets
of the cervical vertebrae, as seen on axial computed tomographic (CT) images.
The pars interarticularis is defined as the parts of the neural arch that lie between the superior and inferior articular facets