Arizona Barber Practice Exam

The frontal is part of the skull, which consists of several different bones. The epicranius is a muscle located on the scalp, and is not a part of the skull itself like the frontal bone. The mandible is a bone in the lower jaw, while the clavicle is a bone in the shoulder. While both are in the general area of the skull, they are not part of the skull itself. Therefore, B is the correct answer as it is the only option that is an actual part of the skull.