Across
- 1. The longest and the heaviest bone
- 4. Lower or upper extremities
- 6. The bottom tip of the spinal column
- 8. The articulation of the fibula, tibia and talus bones
- 11. An opening or a hole in a bone
Down
- 2. The lower jaw
- 3. The joint between the arm and the upper arm
- 5. The upper jaw
- 7. Two flat bones attached to the sternum on their anterior side
- 9. Immobile bones that hold the skull bones together
- 10. Structure that protects the heart and the lungs