Which of the following is found within the appendicular skeleton?

The appendicular skeleton is specifically composed of the bones that form the limbs and their attachments to the axial skeleton. This includes the bones of the upper extremities, such as the humerus, radius, and ulna, as well as the bones of the lower extremities, including the femur, tibia, and fibula. Additionally, the appendicular skeleton encompasses the pelvic girdle, which connects the lower limbs to the body.

By identifying the bones of the upper and lower extremities as components of the appendicular skeleton, it is clear why this choice is correct. In contrast, other options refer to structures that belong to the axial skeleton or different parts of the skeletal system, such as the skull, vertebral column, ribs, and sternum, which are not included in the classification of the appendicular skeleton. This understanding of skeletal anatomy is essential for anyone studying strength and conditioning, as it lays the foundation for understanding how the body is structured and how movement occurs.