Across
- 3. - Nerve cell projection.
- 5. - Tube from kidney to bladder.
- 8. - Voice box.
- 9. - Muscle contraction for digestion.
- 12. - Nerve cell junction.
- 13. - Backbone segment.
- 14. - Related to the lungs.
- 15. - Thigh bone.
Down
- 1. - Nerve fiber.
- 2. - Largest artery.
- 4. - Outer skin layer.
- 6. - Connects muscle to bone.
- 7. - Brain region for coordination.
- 10. - Air sacs in the lungs.
- 11. - Organ filtering blood.