The elbow joint is an example of a synovial joint. The hip joint is an example of a synovial joint. The wrist is an example of a condyloid joint. The knee joint is a type of synovial joint.Synovial fluid is responsible for the cracking or popping noise that is commonly heard when a person cracks his or her knuckles.0 hilariously insightful foreign words. A synovial joint is the most movable and most widespread type of joint throughout the body. It sometimes is referred to as a diarthroses. The term synovial refers to the tissue involved in the joint, and diarthroses refers to the movement enabled.