Ball-and-socket joint
Ball-shaped surface of one rounded bone fits into the cup-like depression of another bone / From Wikipedia, the free encyclopedia
This article is about bone joints. For ground glass joints, see Ground glass joint § Ball-and-socket joints. For similar mechanical joints, see ball joint.
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.
Quick Facts Identifiers, TA98 ...
Ball and socket joint | |
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Identifiers | |
TA98 | A03.0.00.050 |
TA2 | 1562 |
FMA | 75301 |
Anatomical terminology |
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An enarthrosis is a special kind of spheroidal joint in which the socket covers the sphere beyond its equator.[1]