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Synovial joint represents the most common joint in the mammalian body. The human zeugopod synovial joint in humans refers to the joint at the wrists and the ankles. This type of joint enables maximal movement. The synovial joint is characterized by the presence of a synovial capsule surrounding the articular surfaces of the joint and by the presence of synovial fluid inside the capsule. There are seven types of synovial joints which differ by their degrees of movement freedom. Synovial joint formation is divided into several phases: patterning of the joint site, interzone formation, cavitation, and morphogenesis. The early events in joint formation establish the joint as a center of chondrogenic modulation that provides inhibitory signals to the ends of future bones, therefore balancing ossification.