Which of the following is an example of a long bone?

The femur is classified as a long bone, which are characterized by their greater length than width and are primarily composed of a shaft and two ends. Long bones function in supporting the weight of the body and facilitating movement, as they act as levers for muscles. The femur, located in the thigh, is the longest bone in the human body and plays a crucial role in walking, running, and other activities that require movement.

In contrast, carpals and tarsals are classified as short bones, characterized by their cube-like shape, while the patella is classified as a sesamoid bone, which is embedded within a tendon. These distinctions highlight how the structure and shape of bones relate to their specific functions in the body.