Video Transcript
Which of the diagrams provided outlines the structure of the appendicular
skeleton?
The skeleton can be divided into two parts: the axial skeleton, which consists of the
skull, vertebral column, and thoracic cage, and the appendicular skeleton, which
consists of the arms, legs, and pectoral and pelvic girdles, or the attachment
points of the arms and legs to the core axial skeleton.
The axial skeleton is called such because it creates something of an axis, or fixed
point, around which the limbs move, while the appendicular skeleton consists of
limbs, or appendages, that are added onto, or appended to, the axial skeleton.
This question asks us which diagram shows the appendicular skeleton. So the correct answer is X. The appendicular skeleton structure is outlined by X.
