Like its cousin the Hispaniolan solenodon, whose snout sits on a ball-and-socket joint, it is an evolutionary curiosity. |
The hip joint is a ball-and-socket joint because the spherical head of the femur moves inside the cup-shaped acetabulum. |
Specializations for land walking are mainly found in the forelimbs, including a ball-and-socket joint in the shoulder, like that of mammals. |
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. |
A leveling head or ball-and-socket joint on the top of the tripod will be found of material aid in leveling the instrument. |
Sturdy, easy to assemble ball-and-socket joint to turn the mirror in different directions. |