However, unlike at a cartilaginous joint, the articular cartilages of each bone are not continuous with each other. The bones of the joint articulate with each other within the joint cavity.įriction between the bones at a synovial joint is prevented by the presence of the articular cartilage, a thin layer of hyaline cartilage that covers the entire articulating surface of each bone. The walls of this space are formed by the articular capsule, a fibrous connective tissue structure that is attached to each bone just outside the area of the bone’s articulating surface. Synovial joints are characterized by the presence of a joint cavity. Ligaments support the joint by holding the bones together and resisting excess or abnormal joint motions. The articulating surfaces of the bones are covered by a thin layer of articular cartilage. The joint is surrounded by an articular capsule that defines a joint cavity filled with synovial fluid. Figure 9.4.1 – Synovial Joints: Synovial joints allow for smooth movements between the adjacent bones. This gives the bones of a synovial joint the ability to move smoothly against each other, allowing for increased joint mobility. At synovial joints, the articular surfaces of bones are covered with smooth articular cartilage. This fluid-filled space is the site at which the articulating surfaces of the bones contact each other. A key structural characteristic for a synovial joint that is not seen at fibrous or cartilaginous joints is the presence of a joint cavity. Synovial joints are the most common type of joint in the body ( Figure 9.4.1). Name an example of each of the six types of synovial joints and describe its functional properties.Compare the six types of synovial joints.Discuss the function of additional structures associated with synovial joints.Describe the structural features and functional properties of a synovial joint.
By the end of this section, you will be able to:ĭescribe the characteristic features for synovial joints and give examples
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