Final answer:
The acromion, coracoid process, and spine of the scapula attach to the rotator cuff muscles, while the glenoid cavity does not.
Step-by-step explanation:
The parts of the scapula that attach to the rotator cuff muscles are the acromion, coracoid process, and spine of the scapula.
However, the glenoid cavity does not attach to the rotator cuff muscles.