Plane joint

Plane joint

A plane joint (pronounced: /pleɪn dʒɔɪnt/), also known as a gliding joint, is a type of synovial joint that allows for gliding movement. The term "plane joint" is derived from the Latin "planus", meaning "flat", and the Old French "joint", meaning "joint of the body".

Structure

In a plane joint, the articulating surfaces of the bones are nearly flat and slightly curved, allowing for limited gliding movement. The bones in a plane joint are held together by a joint capsule, which is a fibrous tissue that encloses the joint and is lined with a synovial membrane. The synovial membrane produces synovial fluid, which lubricates the joint and reduces friction during movement.

Function

The primary function of a plane joint is to allow for gliding movements. These movements are typically small and involve sliding or twisting motions. Plane joints are found in areas of the body where small, controlled movements are necessary, such as between the carpal bones of the wrist and the tarsal bones of the foot.

Examples

Examples of plane joints include the acromioclavicular joint, which is located between the acromion process of the scapula and the clavicle, and the intercarpal joints, which are found between the carpal bones in the wrist.

Related terms

• Synovial joint
• Carpal bones
• Tarsal bones
• Acromioclavicular joint
• Intercarpal joints

See also

• Joint
• Articulation (anatomy)
• Human skeleton

External links

• Medical encyclopedia article on Plane joint
• Wikipedia's article - Plane joint

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