What are Saddle Joints?
Saddle joints, also known as a sellar joint, are a type of synovial joint which is one of three types of joints in the body. Saddle joints are highly flexible and are formed between convex and concave articulating surfaces. It allows movements on two planes–flexion or extension and abduction or adduction. In Saddle joints, the articulating surface is covered by articular cartilage which reduces friction between the bones and minimizes the risk of dislocation. The saddle joint provides a balance of stability and mobility that allows fine motor skills and precise movements.
Also Read: Difference Between Bone And Cartilage
Structure
A saddle joint is a type of synovial joint that connects two bones that are saddle-shaped. One bone is concave on the surface and the other one is convex. The articulating bones fit together like a rider and a saddle. The joint formed is highly flexible.
Saddle Joints
The saddle joint is a type of synovial joint that allows a wide range of movements. movement in two planes. Joints are characterized by the presence of two reciprocal concave and convex surfaces, that allow movement in two planes. These planes are flexion/extension and abduction/adduction. In the human body, the saddle joint can be found in the carpometacarpal joint of the thumb, the incudomalleolar joint of the middle ear, the sternoclavicular joint of the thorax, and the calcaneocuboid joint of the heel.
Table of Content
- What are Saddle Joints?
- Diagram of the Saddle Joints
- Movement of Saddle Joints
- Examples of Saddle Joints
- Features of Saddle Joints
- Location of Saddle Joints
- Functions of Saddle Joints
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