Condyloid joint
Condyloid Joint
A Condyloid Joint (pronunciation: /ˈkɒndɪˌlɔɪd ˈdʒɔɪnt/), also known as an ellipsoidal joint, is a type of synovial joint that allows movement in two planes, without rotation.
Etymology
The term "condyloid" is derived from the Greek words "kondylos" meaning knuckle and "eidos" meaning form or shape. Thus, a condyloid joint is one that resembles the shape of a knuckle.
Structure
The condyloid joint consists of an oval-shaped end of one bone fitting into a similarly oval-shaped hollow of another bone. This is also known as an ellipsoid joint due to the shape of the bones involved.
Function
The primary function of a condyloid joint is to allow movement in two planes, without rotation. This includes flexion, extension, abduction, adduction, and circumduction. Examples of condyloid joints in the human body include the wrist joint and the metacarpophalangeal joints (knuckle joints).
Related Terms
- Synovial Joint: A type of joint that is surrounded by a thick, fluid-filled joint capsule.
- Ellipsoid Joint: Another name for a condyloid joint, referring to the oval shape of the bones involved.
- Wrist Joint: An example of a condyloid joint in the human body.
- Metacarpophalangeal Joints: The knuckle joints, which are also examples of condyloid joints.
External links
- Medical encyclopedia article on Condyloid joint
- Wikipedia's article - Condyloid joint
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