Pivot joint in rotating an arm inward). When rotating the forearm, these movements are typically called pronation and supination. In the standard anatomical position, the forearms are supinated, which means that the palms are facing forward, and the thumbs are pointing away from the body. In contrast, a forearm in pronation would have the palm facing backward and the thumb would be closer to the body, pointing medially. Examples of a pivot joint include: In contrast, spherical joints (or ball and socket joints) such as the hip joint permit rotation and all other directional movement, while pivot joints only permit rotation. Pivot
Saddle were brought by the Spanish Conquistadors when they came to the Americas. These saddles were adapted to suit the needs of vaqueros and cowboys of Mexico, Texas and California, including the addition of a horn that allowed a lariat to be tied or dallied for the purpose of holding cattle and other livestock. In the Western world there are two basic types of saddles used today for horseback riding, usually called the English saddle and the "stock" saddle. The best known stock saddle is the American western saddle, followed by the Australian stock saddle. In Asia and throughout the world,