Hinge joint best examples of ginglymoid joints are the Interphalangeal joints of the hand and those of the foot and the joint between the humerus and ulna. The knee joints and ankle joints are less typical, as they allow a slight degree of rotation or of side-to-side movement in certain positions of the limb. The knee is the largest hinge joint in the human body. Hinge and pivot joints are both types of synovial joint. A hinge joint can be considered a modified sellar/saddle joint, with reduced movement. Other objects that work like hinged joints are door hinges, closet doors, and dog
Pivot turn Pivot turn In dance, a pivot turn (or simply pivot) is a general classification for dance turns in which the performer's body rotates about its vertical axis without traveling. The performer may be supported by one or both feet, which swivel in place during the pivot turn. In some dance genres, a pivot on both feet is called a "twist turn". Pivot turns are commonly named as such in ballroom dancing, folk dancing and ethnic dances. In many other dance genres, pivot turns are known by specific names and typically are not referred to as pivots. For example, in ballet,