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
Gliding Federation of Australia Gliding Federation of Australia The Gliding Federation of Australia (GFA) is the governing body for the sport of gliding in Australia. It was founded in 1949. The GFA is responsible to Civil Aviation Safety Authority for the conduct of safe gliding operations in Australia. This includes the setting and maintenance of flying standards and in particular training standards. It provides services to its members such as: In Australia, glider pilots are exempt from holding pilot licences but the GFA is responsible for the establishment of pilot certificates. These are regarded highly enough by CASA and the aviation industry to be