Crossoword
Across
- 1. how many parts are in a neuron?
- 4. how many bones does a baby have?
- 5. you lose a lot of ___ just by breathing
- 9. how many blood cells do we lose each second
- 10. how many ounces of blood does the average persons heart move per beat
- 12. strongest muscle in the body Based on size
- 17. how many nerves are in the brain?
- 18. connect muscle to bone
- 20. muscles are made of muscle
Down
- 2. what do blood cells have that carry oxygen?
- 3. how long is the entire circulatory system in miles?
- 6. Longest bone in the body?
- 7. muscles can only
- 8. one main part of the nervous system is the ___ nervous system
- 11. circulatory system delivers nutrients and___to the body
- 13. How many bones does the skeletal system have?
- 14. lung capacity of average adult?(liter)
- 15. the longest nerve in out body is the ___ nerve
- 16. which lung is smaller?
- 19. where is the smallest bone?