Functions of the skeleton

Support
The main job of the skeleton is to provide support for our body. Without your skeleton your body would collapse into a heap. Your skeleton is strong but light. Without bones you'd be just a puddle of skin and guts on the floor.

Protection
Your skeleton also helps protect your internal organs and fragile body tissues. The brain, eyes, heart, lungs and spinal cord are all protected by your skeleton. Your cranium (skull) protects your brain and eyes, the ribs protect your heart and lungs and your vertebrae (spine, backbones) protect your spinal cord.

Movement
Bones provide the structure for muscles to attach so that our bodies are able to move.Tendons are tough inelastic bands that hold attach muscle to bone.

Interesting fact:
Who has more bones a baby or an adult?
The babies have more bones.