- May 2, 2026The os acromiale is a failure of fusion of the acromial secondary ossification centre, present in approximately 8 percent of…
- May 2, 2026The clavicle is the only long bone oriented horizontally in the body, serving as the strut that connects the shoulder…
- May 2, 2026The scapula is a triangular flat bone forming the posterior shoulder girdle, featuring the glenoid cavity for the shoulder joint,…
- May 2, 2026The pectoralis minor insertion at the coracoid is the structure shortened in anterior shoulder tightness syndromes and the target of…
- May 2, 2026The coracobrachialis at the shoulder region represents its proximal portion at the coracoid attachment and in the anterior axilla, where…
- May 2, 2026The upper slips of serratus anterior, arising from ribs 1-6, are the portion that contributes to scapular upward rotation alongside…
- May 2, 2026The rhomboid major inserts along the medial scapular border at the shoulder level, providing scapular retraction and medial rotation. Its…
- May 2, 2026The sternal head of pectoralis major is the larger, more powerful component, originating from the sternum and costal cartilages. It…
- May 2, 2026Although levator scapulae originates in the neck, its distal insertion at the superior angle of the scapula is a shoulder-region…
- May 2, 2026The lower digitations of serratus anterior, arising from ribs 5-9, are the most powerful portion of the muscle and are…