Across
- 2. largest internal organ and gland in the human body
- 5. main structure of the body
- 6. blood vessels that carry blood towards the heart
- 8. system that brings in oxygen and removes carbon dioxide
- 9. muscular organ that provides blood circulation
- 10. biggest bone in the human body
- 11. smallest bone in the human body
Down
- 1. blood vessels that carry blood away from the heart
- 3. set of veins that deliver oxygenated blood from the lungs to the heart
- 4. erythrocytes
- 6. bones which protect our spinal chord
- 7. largest organ of the human body