| articulatio sellaris | A biaxial synovial joint in which the double motion is effected by the opposition of two surfaces, each of which is concave in one direction and convex in the other; as in the carpometacarpal joint of the thumb. Synonym: articulatio sellaris, articulatio ovoidalis. (05 Mar 2000) |
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| articulatio simplex | One composed of two bones only. Synonym: articulatio simplex. (05 Mar 2000) |
| articulatio spheroidea | A multiaxial synovial joint in which a more or less extensive sphere on the head of one bone fits into a rounded cavity in the other bone, as in the hip joint. Synonym: articulatio spheroidea, articulatio cotylica, cotyloid joint, enarthrodial joint, enarthrosis, socket joint, spheroid articulation, spheroid joint. (05 Mar 2000) |
| articulatio sternoclavicularis | The synovial articulation between the medial end of the clavicle and the manubrium of the sternum and cartilage of the first rib; an articular disk subdivides the joint into two cavities. Synonym: articulatio sternoclavicularis. (05 Mar 2000) |
| articulatio subtalaris | Formed by the articulation of the talus with the calcaneus. (12 Dec 1998) |
| articulatio synovialis | A joint in which the opposing bony surfaces are covered with a layer of hyaline cartilage or fibrocartilage, there is a joint cavity containing synovial fluid, lined with synovial membrane and reinforced by a fibrous capsule and ligaments, and there is some degree of free movement possible. Synonym: articulatio synovialis, diarthrodial joint, diarthrosis, junctura synovialis, movable joint, perarticulation. (05 Mar 2000) |
| articulatio talocalcaneonavicularis | A ball-and-socket synovial joint, part of which participates in the transverse tarsal joint, formed by the head of the talus articulating with the navicular bone and the anterior part of the calcaneus. Synonym: articulatio talocalcaneonavicularis. (05 Mar 2000) |
| articulatio talocruralis | The joint that is formed by the inferior articular and malleolar articular surfaces of the tibia, the malleolar articular surface of the fibula, and the medial malleolar, lateral malleolar, and superior surfaces of the talus. (12 Dec 1998) |
| articulatio tarsi transversa | The synovial joints between the talus and navicular bone medially and the calcaneus and navicular bones laterally which act as a unit in allowing the front of the foot to pivot relative to the back of the foot about the longitudinal axis of the foot, contributing to the total inversion and eversion movements. Synonym: articulatio tarsi transversa, Chopart's joint, midtarsal joint, transverse tarsal articulation. (05 Mar 2000) |
| articulatio temporomandibularis | <anatomy, dentistry> The joint that connects the lower jaw to the skull. (12 Jan 1998) |
| articulatio tibiofibularis | The plane synovial joint between the lateral condyle of the tibia and the head of the fibula. Synonym: articulatio tibiofibularis, superior tibial articulation, superior tibiofibular joint, tibiofibular articulation. (05 Mar 2000) |
| articulatio trochoidea | A synovial joint in which a section of a cylinder of one bone fits into a corresponding cavity on the other, as in the proximal radioulnar joint. Synonym: articulatio trochoidea, helicoid ginglymus, lateral ginglymus, rotary joint, rotatory joint, trochoid articulation, trochoid joint. (05 Mar 2000) |
| apex capitis fibulae | The pointed upper end of the fibular head to which is attached the arcuate popliteal ligament and part of the biceps femoris tendon. Synonym: apex capitis fibulae, styloid process of fibula. (05 Mar 2000) |
| rectus capitis anterior | <anatomy, muscle> Origin, transverse process and lateral mass of atlas; insertion, basilar process of occipital bone; action, turns and inclines head forward; nerve supply, ventral primary ramus of first and second cervical spinal nerve. Synonym: musculus rectus capitis anterior, anterior rectus muscle of head, musculus rectus capitis anticus minor. (05 Mar 2000) |
| rectus capitis lateralis | <anatomy, muscle> Origin, transverse process of atlas; insertion, jugular process of occipital bone; action, inclines head to one side; nerve supply, ventral primary ramus of first cervical spinal nerve. Synonym: musculus rectus capitis lateralis, lateral rectus muscle of the head. (05 Mar 2000) |