Skeletal System

123456789
Across
  1. 3. the collection of bones that protects your lungs.
  2. 7. something that joins bone to bone.
  3. 9. the triangle-shaped one in your upper back.
Down
  1. 1. your back bone.
  2. 2. the place where two bones meet.
  3. 4. the bone that protects your brain.
  4. 5. the bone in the upper arm.
  5. 6. one of the bone in the lower leg.
  6. 8. the longest bone in the human body.