Inferior Articular Facet Of The Cervical Vertebra, Anatomy

Description

Inferior articular facet of a cervical vertebra occupies the posteroinferior margin of the vertebral arch at the junction of the lamina and the articular process. Its smooth, slanted articular surface faces inferiorly with a slight anterior inclination, positioned lateral to the spinous process and posterior to the pedicle, with the vertebral foramen lying medial and anterior to the facet. Superiorly, the facet continues into the articular pillar, while laterally it relates to the transverse process and the foramen transversarium at the same vertebral level. Facet orientation in the neck governs coupled rotation and lateral flexion, and it also explains why hyperflexion injuries can produce perched or locked facets with anterior translation at the zygapophysial joint. Pain generators such as cervical spondylosis and facet arthropathy localize to this joint line, and interventional targets, including medial branch blocks and radiofrequency ablation, depend on appreciating how the inferior articular process overlaps the superior articular facet of the vertebra below. Bony contour is the message. For anatomy teaching, this illustration fits gross anatomy lab manuals, spine modules in physical therapy and chiropractic curricula, and neurosurgery or orthopedics references describing posterior cervical approaches where the lamina, articular pillar, and facet joint define the safe corridor before decompression or fusion. It also supports radiology captions correlating osseous landmarks with oblique cervical radiographs and CT bone windows. Anatomical accuracy verified by SciePro's Medical Advisory Board.