| superior articular pit of atlas | One of two concave articular surfaces on the superior aspect of the lateral masses of the atlas that articulate with the occipital condyles. Synonym: facies articularis superior atlantis, fovea articularis superior atlantis, superior articular pit of atlas. (05 Mar 2000) |
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| superior articular process of sacrum | The large process on each side of the sacrum posteriorly that articulates with the corresponding inferior articular process of the fifth lumbar vertebra. Synonym: processus articularis superior ossis sacri. (05 Mar 2000) |
| superior articular surface of tibia | The articular surface on the proximal end of the tibia that is divided into medial and lateral portions for articulation with the condyles of the femur. Synonym: facies articularis superior tibiae. (05 Mar 2000) |
| dislocation of articular processes | Complete dislocation of one or both articular processes, usually with overriding of the inferior articular process of the vertebra above into a position anterior to the superior articular process of the vertebra below. Synonym: locked facets. (05 Mar 2000) |
| inferior articular facet of atlas | One of two concave surfaces on the lateral masses of the atlas that articulate with corresponding surfaces on the axis. Synonym: facies articularis inferior atlantis, fovea articularis inferior atlantis, inferior articular pit of atlas. (05 Mar 2000) |
| inferior articular pit of atlas | One of two concave surfaces on the lateral masses of the atlas that articulate with corresponding surfaces on the axis. Synonym: facies articularis inferior atlantis, fovea articularis inferior atlantis, inferior articular pit of atlas. (05 Mar 2000) |
| inferior articular surface of tibia | The quadrilateral surface on the distal end of the tibia for articulation with the talus; it is concave anteroposteriorly and broader anteriorly. Synonym: facies articularis inferior tibiae. (05 Mar 2000) |
| intra-articular | Within the cavity of a joint. Origin: intra-+ L. Articulus, joint (05 Mar 2000) |
| intra-articular cartilage | A plate or ring of fibrocartilage attached to the joint capsule and separating the articular surfaces of the bones for a varying distance, sometimes completely; it serves to adapt two articular surfaces that are not entirely congruent. Synonym: discus articularis, articular disk, fibrocartilago interarticularis, fibroplate, interarticular fibrocartilage, intra-articular cartilage. (05 Mar 2000) |
| intra-articular fracture | Fracture occurring within a joint capsule. (05 Mar 2000) |
| intra-articular ligament of costal head | Transverse fibres extending within the capsule from the ridge between the two facets on the head of the rib to the intervertebral disk. Synonym: ligamentum capitis costae intra-articulare. (05 Mar 2000) |
| intra-articular sternocostal ligament | <anatomy> A ligament within the articular capsule between a costal cartilage and the sternum; especially well developed at second costal cartilage. Synonym: ligamentum sternocostale intra-articulare. (05 Mar 2000) |
| talar articular surface of calcaneus | Any of the three facets of the calcaneus that articulate with the overlying talus; the talar articular surface anterior and middle talar articular surface contribute to the talocalcaneonavicular joint and are separated by the tarsal sinus from the posterior talar articular surface which enters into the subtalar joint. Synonym: facies articularis talaris calcanei. (05 Mar 2000) |
| temporomandibular articular disk | The fibrocartilaginous plate that separates the joint into upper and lower cavities. Synonym: discus articularis temporomandibularis, mandibular disk, temporomandibular articular disk. (05 Mar 2000) |
| thyroidal articular surface of cricoid | One of two small circular facets on the lateral surface of the cricoid cartilage near the inferior margin of the junction of the arch and lamina for articulation with the inferior horns of the thyroid cartilage. Synonym: facies articularis thyroidea cricoideae. (05 Mar 2000) |