Trivia: What makes up the skeletal system, besides bones?
Nerves
Skin
Nails
Cartilage
Correct Answer: Cartilage
So why is this answer correct? : Bones, cartilage, tendons, and ligaments form the body’s central framework, allowing it to have structure while protecting vital organs, such as the brain and heart. Cartilage pads the area where bones meet, allowing joints to move smoothly without painful friction.