Pivot Joint (Noun)
Meaning
A freely moving joint in which movement is limited to rotation; "the articulation of the radius and ulna in the arm is a pivot joint".
Classification
Nouns denoting body parts.
Examples
- The pivot joint between the first and second vertebrae in the neck allows for rotation of the head.
- A pivot joint connects the proximal ends of the radius and ulna in the forearm.
- The pivot joint in the elbow is stabilized by ligaments and muscles.
- In a pivot joint, one bone rotates within a ring formed by another bone.
- The atlas-axis joint is an example of a pivot joint in the spine.