The three shoulder bones include the scapula, the clavicle, and the humerus. A shoulder dislocation happens when the humerus slips fully or partially out of the shoulder joint socket, or the glenoid.

It is the only bone in the upper arm, and it is also the largest bone in the upper extremity. The top of the humerus joins with an area called the glenoid fossa on the scapula or shoulder blade to ...

The scapula is a triangle-shaped bone positioned at the back of your shoulders. Many different muscles are anchored to this shoulder blade bone. Despite the bone being a solid piece, there are ...

The scapula is held to the thorax by scapular muscle activity, and the joints connecting the clavicle (collar bone) to the scapula and sternum. The name of the joint actions of the scapula are ...

The three bones of the shoulder are the: The scapula has one part that forms a socket for the head of the humerus, called the glenoid fossa. The glenoid fossa is covered with a smooth cartilage ...

About eight shoulder muscles attach to the shoulder blade (scapula), upper arm (humerus), and collar bone (clavicle). Many other muscles play a part in stabilizing and guiding the shoulder and its ...

The head of your upper arm bone, also called the humerus, fits into the socket of your shoulder blade, or scapula. When you extend your arm out away from your body, the rotator cuff muscles keep ...

The scapula, or shoulder blades, are flat bones that connect the upper arm to the collar bone. They typically lie almost flat across the back. In scapular winging, a portion of the scapula rotates ...

NEW YORK — Reverse shoulder arthroplasty performed with an alternate scapular line baseplate orientation yielded clinical improvements among patients with glenoid bone loss, according to results ...