| basal joint reflex | Opposition and adduction of the thumb with flexion at its metacarpophalangeal joint and extension at its interphalangeal joint, when firm passive flexion of the third, fourth, or fifth finger is made; the reflex is present normally but is absent in pyramidal lesions. Synonym: finger-thumb reflex, Mayer's reflex. (05 Mar 2000) |
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| biaxial joint | One in which there are two principal axes of movement situated at right angles to each other; e.g., saddle joint's. (05 Mar 2000) |
| bicondylar joint | A synovial joint in which two more or less distinct, rounded surfaces of one bone articulate with shallow depressions on another bone. Synonym: articulatio bicondylaris, bicondylar articulation. (05 Mar 2000) |
| bilocular joint | One in which the intra-articular disk is complete, dividing the joint into two distinct cavities. (05 Mar 2000) |
| Budin's obstetrical joint | Cartilaginous union between the squamous and lateral parts of the occipital bone in the newborn. Synonym: synchondrosis intraoccipitalis posterior, Budin's obstetrical joint, posterior intraoccipital joint. (05 Mar 2000) |
| butting joint | A joint between two pieces of timber or wood, at the end of one or both, and either at right angles or oblique to the grain, as the joints which the struts and braces form with the truss posts; sometimes called abutting joint. Source: Websters Dictionary (01 Mar 1998) |
| calcaneocuboid joint | A somewhat saddle-shaped synovial joint between the anterior surface of the calcaneus and the posterior surface of the cuboid. This is the lateral element of the compound transverse tarsal joint. Synonym: articulatio calcaneocuboidea. (05 Mar 2000) |
| capitular joint | The synovial joint between a rib and bodies of two adjacent vertebrae; the joint cavity is divided by an intra-articular ligament which attaches to the intervertebral disk; the first, tenth, eleventh, and twelfth ribs articulate with only one vertebra. Synonym: articulatio capitis costae, capitular joint. (05 Mar 2000) |
| radiocarpal joint | The synovial joint between the distal end of the radius and its articular disk and the proximal row of carpal bones with the exception of the pisiform bone. Synonym: articulatio radiocarpea, carpal articulation, carpal joints, radiocarpal articulation, radiocarpal joint. (05 Mar 2000) |
| mandibular joint | <anatomy, dentistry> The joint that connects the lower jaw to the skull. (12 Jan 1998) |
| manubriosternal joint | The early union, by hyaline cartilage, of the manubrium and the body of the sternum, which later becomes a symphysial type of joint. Synonym: synchondrosis manubriosternalis. (05 Mar 2000) |
| carpometacarpal joint of thumb | The saddle-shaped synovial articulation between the trapezium and the base of the first metacarpal bone. Synonym: articulatio carpometacarpea pollicis. (05 Mar 2000) |
| cartilaginous joint | A joint in which the apposed bony surfaces are united by cartilage; they are divided into synchondroses and symphyses; in synchondroses, the cartilage connecting the apposed surfaces is, as a rule, ultimately converted to bone, as between epiphyses and diaphyses of long bones; exceptions are the sternal synchondroses and the cartilaginous union of the first rib and the manubrium of the sternum; in symphyses the bones are connected by a flat disk of fibrocartilage which remains unossified throughout life; e.g., the intervertebral disk and the symphysis pubis. Synonym: articulatio cartilaginis, cartilaginous articulation, junctura cartilaginea, synarthrodial joint. (05 Mar 2000) |
| ginglymoid joint | A uniaxial joint in which a broad, transversely cylindrical convexity on one bone fits into a corresponding concavity on the other, allowing of motion in one plane only, as in the elbow. Synonym: ginglymus, ginglymoid joint. (05 Mar 2000) |
| gliding joint | A synovial joint in which the opposing surfaces are nearly planes and in which there is only a slight, gliding motion, as in the intermetacarpal joints. Synonym: articulatio plana, arthrodia, arthrodial articulation, arthrodial joint, gliding joint. (05 Mar 2000) |