BBC - http://www.bbc.co.uk/science/humanbody/body/fac... BBC Science. Human Body & Mind. The Body: Skeleton BBC - http://www.bbc.co.uk/science/humanbody/body/fac... BBC Science. Human Body & Mind. The Body: Skeleton BBC Science. Human Body & Mind. The Body: Skeleton longest, largest and strongest bone in the human body BBC Science. Human Body & Mind. The Body: Skeleton BBC Science and Nature: Femur