Across
- 4. muscle-involuntary-the lining
- 8. small vessels that carry blood between arteries and veins (they connect things)
- 9. 126 bones-upper and lower limbs
- 10. progressive loss of bone tissue/density
- 11. the windpipe where the air enters
- 14. the airsacs where gas exchange takes place
- 15. the main airways into the lungs
- 17. these create blood clots and stops loss of blood
Down
- 1. the bottom two chambers
- 2. the network of tubes (branches)
- 3. muscle-attaches to bones and causes body movement
- 5. process where bone is formed, renewed, repaired
- 6. the top two chambers
- 7. muscle-involuntary-forms the wall of the heart
- 9. they carry blood away from the heart
- 12. 80 bones-center/core
- 13. the decrease in muscle size/strength
- 16. they bring blood back to the heart