Across
- 1. Organ used for breathing
- 4. Organ that pumps blood
- 6. Backbone made of vertebrae
- 7. Organ that detoxifies substances
- 9. Bone forming part of the chest cage
Down
- 2. Organ used for smelling
- 3. Control center of the body
- 5. Largest bone in the human body
- 6. Bony structure protecting the brain
- 8. Blood vessel carrying blood to heart