Which Bone is Not Part of the Axial Skeleton

Question

Which bone is not part of the axial skeleton?
A)Malleus
B)Sacrum
C)Clavicle
D)Atlas
E)Frontal bone

Accepted Answer

The clavicle (collarbone) is part of the appendicular skeleton, which includes the bones of the limbs and their supporting elements (such as the clavicle and scapula). The other choices are all part of the axial skeleton, which includes the bones that form the central axis of the body, such as the skull, vertebral column, and ribs.