Skeletal system

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Across
  1. 2. One of the bones in your spine.
  2. 4. The substance inside a bone that makes blood
  3. 10. Part of the skeleton that includes shoulders, pelvis and the arm and leg bones
  4. 11. Something that joins bone to bone.
Down
  1. 1. The largest bone in the human body.
  2. 3. The place where two bones meet.
  3. 5. Part of the skeleton that includes ribs, spine and skull
  4. 6. Something that joins muscles to bone.
  5. 7. The bone that protects your brains.
  6. 8. Your backbone.
  7. 9. The collection of bones that protect your lungs.