Which bone is involved in forming the acromioclavicular joint?

The acromioclavicular joint is indeed formed by the articulation of two bones: the clavicle and the scapula. Specifically, the acromion process of the scapula meets the lateral end of the clavicle to create this joint. The acromioclavicular joint plays a crucial role in shoulder stability and movement, allowing for a range of motions essential for upper limb function. Understanding the anatomy and function of this joint can provide valuable insight into various injuries that might occur in the shoulder area, especially for combat medics who need to assess and manage musculoskeletal injuries.