Across
- 4. vital gas that is carried in your circulatory system
- 6. plays a small part in breathing but deadly without it
- 9. system of how we breathe
- 10. system of blood flow across the body
- 12. your ___ is the control unit for your body
- 14. the ___ are not both the same size, you have 2 of these
- 15. system of bones in your body
- 16. system of neurons and receptors to carry out everything you do
- 19. system of muscles in the body
- 20. your_____ contains more than 200 bones
- 21. contains the smallest muscles in the body
Down
- 1. ___ float on water, these make it possible for you to breathe
- 2. this part of your body is filled with a spongy tissue
- 3. you have nerve cells everywhere in your ___
- 5. other name for Circulatory system
- 7. a person usually ___ an average of 13 pints every minute
- 8. hardest working muscle in the body
- 11. a nervous response to getting hurt
- 13. Your body has billions of nerve cells
- 17. makes up about 40% of body weight
- 18. longest bone in your body