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The ball-and-socket joint (or spheroid joint) is a type of synovial joint in which the ball-shaped surface of one rounded bone fits into the cup-like depression of another bone. The distal bone is capable of motion around an indefinite number of axes, which have one common center. This enables the joint to move in many directions.
English: This diagram shows the anatomy of the ball and socket joint found in the hip. A ball and socket joint is a type of synovial joint in which the round surface of one bone fits into a round depression of another bone. 1.) The femur 2.) Femoral neck 3.) Femoral head 4) Acetabulum 5.) Acetabular Labrum 6.) Pelvis.
A condyloid joint is a modified ball and socket joint that allows primary movement within two perpendicular axes, passive or secondary movement may occur on a third axes. Some classifications make a distinction between condyloid and ellipsoid joints; [ 5 ] [ 6 ] these joints allow flexion, extension, abduction, and adduction movements ...
A spherical S joint or ball and socket joint requires that a point in the moving body remain stationary in the fixed body. This joint has three degrees of freedom, corresponding to rotations around orthogonal axes. A planar joint requires that a plane in the moving body maintain contact with a plane in fixed body. This joint has three degrees ...
The hip joint, scientifically referred to as the acetabulofemoral joint (art. coxae), is the ball-and-socket joint between the pelvic acetabulum and the femoral head. Its primary function is to support the weight of the torso in both static (e.g. standing ) and dynamic (e.g. walking or running ) postures.
The glenohumeral joint, to which the term "shoulder joint" commonly refers, is a ball-and-socket joint that allows the arm to rotate in a circular fashion or to hinge out and up away from the body. The "ball" is the top, rounded portion of the upper arm bone or humerus; the "socket," or glenoid , is a dish-shaped part of the outer edge of the ...
The shoulder joint is a ball-and-socket joint between the scapula and the humerus. The socket of the glenoid fossa of the scapula is itself quite shallow, but it is made deeper by the addition of the glenoid labrum. The glenoid labrum is a ring of cartilaginous fibre attached to the circumference of the cavity.
Diagram of a typical synovial joint. Depiction of an intervertebral disc, a cartilaginous joint. ... ball and socket joint, hinge joint, pivot joint, [14] [15] ...