Arthrodial

Arthrodial is a term used in anatomy to describe a type of synovial joint. These joints are also commonly referred to as gliding joints or plane joints. The characteristic feature of an arthrodial joint is that its articular surfaces are flat or only slightly curved. This allows for a gliding or sliding motion between the bones. The movement is typically limited, with no significant angular motion.

Arthrodial joints are found in several locations within the body. Examples include the intercarpal joints of the wrist, where the bones of the hand articulate with each other, and the intertarsal joints of the ankle. They are also present in the joints between the articular processes of the vertebrae. The capsule of an arthrodial joint is generally loose, facilitating the free movement of the articular surfaces against each other. The presence of a synovial membrane within the joint capsule secretes synovial fluid, which lubricates the surfaces and reduces friction during movement. These joints play a crucial role in providing stability and allowing for fine adjustments in position for many parts of the skeleton.