Which girdle is composed of the clavicle and scapula?

The shoulder girdle, also known as the pectoral girdle, is specifically made up of the clavicle (collarbone) and scapula (shoulder blade). This structure connects the upper limb to the trunk of the body and allows for a wide range of motion in the arms. The clavicle acts as a strut that stabilizes the shoulder, while the scapula provides attachment points for muscles that facilitate arm movement.

In understanding the shoulder girdle's role, it's also helpful to distinguish it from the other choices. The pelvic girdle, for example, is comprised of the hip bones and is involved in supporting the weight of the upper body when sitting and standing. The axial skeleton refers to the central core of the body, including the skull, vertebral column, and rib cage, which serves to protect vital organs and provide support and structure. The appendicular skeleton includes all the limbs and their attachments to the axial skeleton, but it is a broader category than just the shoulder girdle.