In another type of systemic scleroderma, known as diffuse cutaneous systemic scleroderma, the fibrosis affects large areas of skin, including the torso and the upper arms and legs, and often involves internal organs.n the third type of systemic scleroderma, called systemic sclerosis sine scleroderma (sine means without in Latin), fibrosis affects one or more internal organs but not the skin.
The UCL, or ulnar collateral. ligament, is located in. the middle thumb joint, and provides support to. the thumb during grip. and pinch. It is the most. common ligament injury.
The ulna is the longer and larger of the two bones, residing on the medial (pinky finger) side of the forearm. It is widest at its proximal end and narrows considerably at its distal end. At its proximal end, the ulna forms the hinge of the elbow joint with the humerus.natomy Explorer. 1  Bones of the Chest and Upper Back. 2  Bones of the Leg and Foot. 3  Bones of the Pelvis and Lower Back. 4  Elbow Joint. 5  Hand and Wrist. 6  Humerus. 7  Interosseous Membrane of the Arm. 8  Radius. 9  Shoulder Joint. 10  Ulna.