Final answer:
The Arthroscopic AC joint guide is placed on the acromion and the coracoid process, crucial landmarks in the scapula related to the acromioclavicular joint.
Step-by-step explanation:
The anatomic landmarks that the Arthroscopic AC joint guide is placed on are the acromion and the coracoid process. These landmarks are part of the scapula and play a crucial role in shoulder articulation and stability. The acromioclavicular joint is the articulation between the acromion of the scapula and the acromial end of the clavicle, which is important for transmitting forces from the upper limb to the clavicle.
The acromion is a flattened bony process that extends laterally from the scapular spine to form the bony tip of the shoulder. The coracoid process is a hook-like bony process that projects anteriorly and curves laterally, located inferior to the clavicle and providing attachment sites for several muscles of the anterior chest and arm.