Articularis genus, also known as the knee joint muscle, is an important muscle in the leg that is responsible for performing several important functions. There are several synonyms for the term articularis genus, including the genicular muscles, the kneecap muscle, and the joint muscles. These synonyms all refer to the same muscle group, but use different terms to describe it. The genicular muscles are responsible for maintaining proper alignment and function of the knee joint, while the kneecap muscle helps with knee extension and flexion. Joint muscles play an important role in the overall health and stability of the knee joint, making it an essential muscle group in the human body.