One of the mysteries of the English language finally explained.
A natural or manufactured joint or coupling, such as the hip joint, in which a partially spherical end lies in a socket, allowing multidirectional movement and rotation.
- ‘‘The rotator cuff is the ball-and-socket joint of your shoulder, and it's made up of four muscles,’ says Kevin O'Leary, D.C.’
- ‘Hollows are very different in shape and size, so each camera was attached to a ball-and-socket joint to allow us to adjust the orientation of cameras inside the hollow.’
- ‘The hip is a ball-and-socket joint where the thigh bone's femoral head fits into the acetabulum of the pelvis.’
- ‘Action Man was a jolly sight easier to dress on account of having ball-and-socket joints somewhat resembling one of Larry Niven's Protectors.’
- ‘The hip joint is a ball-and-socket joint because the spherical head of the femur moves inside the cup-shaped acetabulum.’
- ‘In mountainous areas, the towers were built with one leg shorter than the other and they have ball-and-socket joints at the base.’
- ‘Regardless of the chosen system, a primary THA replaces the proximal femur, including the femoral head, and resurfaces the acetabulum, creating a new ball-and-socket joint.’
- ‘The hip is a true ball-and-socket joint, where the ball of the femur is securely cradled in a deep socket of pelvic bone called the acetabulum.’
- ‘He said: ‘It affects the head of the femur, or, in layman's terms, the ball of the ball-and-socket joint, effectively causing this to die and then re-model itself’.’
- ‘This forces your front deltoids to work through a fuller range of motion, one only possible via the ball-and-socket joints of your shoulders.’
- ‘The shoulder, a ball-and-socket joint, can move in almost any direction, says certified trainer Jennifer Zerling.’
- ‘The ball-and-socket joints in your shoulders allow your arms to move in a circular motion next to your body, a semicircular motion away from your body and through all the planes in between.’
- ‘These are moved by a system of muscles and linked together by ball-and-socket joints.’
- ‘Specializations for land walking are mainly found in the forelimbs, including a ball-and-socket joint in the shoulder, like that of mammals.’
- ‘Each spine is tucked into a ball-and-socket joint, and attached to that joint is a muscle at the base, which allows the spine to swivel around and aim it at passing predators looking for a meal.’
- ‘This ball-and-socket joint allows your arms to move in practically any direction you want, be it overhead, sideways, forward, back, or any direction in between.’
- ‘In the effort to minimize material wear, the U.K.-based researchers have created their artificial hip using a combination of ceramics and metal in the design of the ball-and-socket joint.’
- ‘The hip is a synovial, ball-and-socket joint formed by the head of the femur and acetabulum of the coxal bone.’
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