Pivot joint Pivot joint In animal anatomy, a pivot joint (trochoid joint, rotary joint, lateral ginglymus) is a type of synovial joint. In pivot joints, the axis of a convex articular surface is parallel with the longitudinal axis of the bone. According to one classification system, a pivot joint like the other synovial joint —the hinge joint has one degree of freedom. Note that the degrees of freedom of a joint is not the same as the same as joint's range of motion. Pivot joints allow for rotation, which can be external (for example when rotating an arm outward), or internal (as
Hinge and Bracket Hinge and Bracket Dr Evadne Hinge and Dame Hilda Bracket were the stage names of George Logan and Patrick Fyffe respectively. The characters of Hinge (somewhat brittle and acerbic) and Bracket (more flamboyant) were elderly intellectual female musicians; in these personae the male Logan and Fyffe played and sang songs to comic effect. They made many appearances on television and radio. The two generally performed together, but on rare occasions appeared separately. Logan declined to continue the characterisation of Dr Hinge after Fyffe died. A genteel English inter-war world was recalled via the act. Their work was frequently decorated with