What is the appendicular skeleton comprised of?

The appendicular skeleton is indeed comprised of all the bones of the appendages and their related limb girdles. This includes the bones of the arms and legs, as well as the shoulder girdles (which include the clavicles and scapulae) and the pelvic girdles (which form the connection between the trunk and the lower limbs).

This structure plays a critical role in facilitating movement and supporting the weight of the body when engaging in various physical activities. The appendicular skeleton allows for a wide range of motions, which is essential for activities involving locomotion, manipulation of objects, and overall mobility.

The other options focus on structures that fall outside of the appendicular skeleton. The skull and vertebral column are components of the axial skeleton, which protects the brain and spinal cord. The rib cage is also part of the axial skeleton, providing protection for the thoracic organs. The last choice, which mentions only the bones of the hands and feet, is limited and does not encompass the entire appendicular skeleton or its associated girdles.