3. How Does Rotation Differ From Circumduction?
1. Define nonaxial, uniaxial, biaxial and multiaxial joint movements. Give one example of each.
Nonaxial: slipping movement only; intercarpal joints
Uniaxial: movement in one plane; elbow
Biaxial: movement in two planes; jaw
Multiaxial: movement in or around all three planes; shoulder
2. How does rotation differ from circumduction?
Rotation is the turning of a bone around its own axis; circumduction is the circular movement of a limb. Circumduction can only be executed by a ball-and-socket joint, while the majority of rotation comes from pivot joints.
3. What is the specific role of the menisci of the knee? What about the anterior and posterior cruciate ligaments?
The meniscus is a piece of cartilage in the knee joint,
Nonaxial: slipping movement only; intercarpal joints
Uniaxial: movement in one plane; elbow
Biaxial: movement in two planes; jaw
Multiaxial: movement in or around all three planes; shoulder
2. How does rotation differ from circumduction?
Rotation is the turning of a bone around its own axis; circumduction is the circular movement of a limb. Circumduction can only be executed by a ball-and-socket joint, while the majority of rotation comes from pivot joints.
3. What is the specific role of the menisci of the knee? What about the anterior and posterior cruciate ligaments?
The meniscus is a piece of cartilage in the knee joint,