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