The actual region of contact is called the articular facet.

Each carries two articular facets, a superior and an inferior.

The tenth rib has only a single articular facet on its head.

The articular facets are flat and of an oval form:

The eleventh rib has a single articular facet on the head, which is of rather large size.

Superior and inferior articular facets on each vertebra act to restrict the range of movement possible.

The lines of union extend across the anterior portions of the superior articular facets.

The transverse processes are very short, tuberculated at their extremities, and do not have articular facets.

The superior articular surface presents two smooth articular facets.

The carpal articular facet is concave behind, flat in front, and articulates with the capitate.

It presents four articular facets, three on the upper surface and one on the ulnar side:

The pisiform bone may be known by its small size, and by its presenting a single articular facet.

The head is small, rounded, and possesses only a single articular facet, for articulation with the body of the first thoracic vertebra.

Intrarticular fractures are more common and involve the posterior talar articular facet of the calcaneus.

The peg has an articular facet at its front and forms part of a joint with the anterior arch of the atlas.

The articular facets, also in the posterior portion of the bony spine can become thickened and enlarged causing stenosis.

On the under surface of the posterior arch, behind the articular facets, are two shallow grooves, the inferior vertebral notches.

An articular facet (or articular surface) is a surface where two anatomical structures (usually bones) meet.

The foraman magnum is located towards the front, the atlas has a shallow anterior articular facets which allow the condyles to attach.

The defect includes an alteration in the size and shape of the neural arch, which includes a greater width and narrower articular facets.

They are used as a landmark for finding the superior articular facets of the sacrum as a guide to place sacral pedicle screws in spine surgery.

It passes from the anterior margin of the fibular malleolus, anteriorly and medially, to the talus bone, in front of its lateral articular facet.

In non-human tetrapods, the name capitellum is generally used, with "capitulum" limited to the anteroventral articular facet of the rib (in archosauromorphs).

This narrowing of the canal is related to degeneration of the dorsal articular facets and subsequent thickening of the associated joint capsules and ligaments.

The interosseous metacarpal ligaments (ligamenta metacarpalia interossea) connect their contiguous surfaces, just distal to their collateral articular facets.