| sacrococcygeal joint | The cartilaginous articulation of the coccyx with the sacrum. Synonym: articulatio sacrococcygea, coccygeal joint, junctura sacrococcygea, sacrococcygeal junction, symphysis sacrococcygea. (05 Mar 2000) |
|---|---|
| sacroiliac joint | The joint between the sacrum and ilium and associated ligaments. (12 Dec 1998) |
| saddle joint | 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) |
| Henle's fibre layer | The layer of inner cone fibres in the central area of the retina. (05 Mar 2000) |
| Henle's layer | The outer layer cells of the inner root sheath of the hair follicle. (05 Mar 2000) |
| Henle's nervous layer | The layers of the retina from the outer plexiform to the nerve fibre layer inclusive. Synonym: Henle's nervous layer. (05 Mar 2000) |
| Sattler's elastic layer | The middle layer of the choroid. (05 Mar 2000) |
| schindyletic joint | A form of fibrous joint in which the sharp edge of one bone is received in a cleft in the edge of the other, as in the articulation of the vomer with the rostrum of the sphenoid. Synonym: schindylesis, schindyletic joint, wedge-and-groove suture. (05 Mar 2000) |
| proximal radioulnar joint | The pivot synovial joint between the head of the radius and the ring formed by the radial notch of the ulna and the annular ligament. Synonym: articulatio radioulnaris proximalis, proximal radioulnar articulation, superior radioulnar joint. (05 Mar 2000) |
| proximal tibiofibular joint | 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) |
| xiphisternal joint | The cartilaginous union between the xiphoid process and the body of the sternum. Synonym: synchondrosis xiphosternalis. (05 Mar 2000) |
| scrape-off layer | <radiobiology> Outer layer of a plasma which is affected (scraped off) by a divertor or limiter. That is, the outer layer of a magnetically confined plasma (ca. 2 cm thick) where the field lines penetrate a material surface (limiter or divertor plate) rather than close upon themselves. This region defines the outer limit of the plasma because any plasma crossing into the SOL is rapidly lost since transport along the field is much faster than that across the field. That is, particles follow these field lines into the material surface and are lost from the plasma. (09 Oct 1997) |
| screw joint | A variety of hinge joint in which the elevation and depression, respectively, on the opposing articular surfaces form part of a spiral, flexion being then accompanied by a certain amount of lateral deviation. Synonym: screw joint, spiral joint. (05 Mar 2000) |
| hinge 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) |
| hip joint | The ball-and-socket synovial joint between the head of the femur and the acetabulum. Synonym: articulatio coxae, coxa, thigh joint. (05 Mar 2000) |