Similar to ligaments, they are made of collagen and can withstand increased tension. Tendons are thick bands of connective tissue that connect muscle to bone. Helping absorb forces transmitted into the acromion by large muscles like the deltoid and trapezius. This ligament plays a role in stopping the head of the humerus from shifting too high upward into the shoulder as well as a tension band in There are ligaments that connect the shoulder blade (scapula) to the Humerus which include: coracohumeral ligament and the glenohumeral ligaments (superior, middle and inferior).įinally, there is a ligament connecting the coracoid process to the acromion called the (you guessed it!) coracoacromial ligament. Injuries to these ligaments can cause clavicle instability. There is also the costoclavicular ligament that stabilizes the clavicle to the sternum of the chest. The clavicle has two ligaments involving the shoulder that help with stabilizing it to nearby bony structures: The acromioclavicular ligament and the coracoclavicular ligament both stabilize the clavicle to the shoulder blade. The ligaments in the shoulder are all named after the bones they connect.
To withstand forces that it takes from different directions a ligament is made of a weaving matrix of fibers. Ligaments are tough and flexible and look like a white band or cable-like structure. They are fairly short in comparison to tendons, but very similar in what they are made of. Ligaments are a dense connective tissue that connects bone to bone. There is forward and back tilt, gliding movement across the back and rotation across the back. The scapular thoracic joint is the space between the back of the chest wall and the front of the shoulder blade or scapula and there is a lot of movement in this joint. There is not a lot of movement in this joint, but when there is an injury here it can be very painful. The acromioclavicular joint connects the clavicle to the acromion, which is part of the shoulder blade or scapula. It works to allow a lot of range of motion in forward flexion (arms in front), abduction (arms to the sides), adduction (arms across the body) and extension (arms reaching back). The glenohumeral joint is the main joint and is more like a golf ball sitting on a tee. The scapula, clavicle and humerus are the bones of the shoulder. The shoulder is extremely mobile and made up of several joints that work together.
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