AEMCA Practice Exam

The appendicular skeleton primarily serves the critical function of connecting the limbs to the trunk of the body. This part of the skeleton is composed of the bones of the limbs, as well as the pelvic and shoulder girdles. These connections enable the limbs to move in a coordinated manner and facilitate a range of activities, including walking, running, and manipulation of objects.

While other functions are present in the skeletal system, such as protection of vital organs or supporting the body, these roles are mainly fulfilled by the axial skeleton, which includes the skull, vertebral column, and rib cage. Additionally, blood cell formation is primarily associated with the bone marrow found within certain bones, but this is not a specific function of the appendicular skeleton itself. Therefore, the primary role of the appendicular skeleton focuses on the attachment and movement of the limbs in relation to the trunk.