Across
- 3. volume of air breathed in/out each minute
- 4. alveoli is surrounded by lots of these giving them a large blood supply
- 6. before diffusion takes place there is a high concentration of this in your alveoli
- 8. the bronchi split into smaller tubes called these
- 10. muscles that help air move in and out
- 12. where gaseous exchange takes place
- 14. acid causes your muscles to fatigue and tire after short periods of vigorous exercise
- 16. water is lost as this during exercise
- 17. all living cells in your body need this
Down
- 1. this structure of the alveoli help gases easily pass through them
- 2. exercise with oxygen
- 5. sprinters get their energy this way
- 7. contracts and expands the chest cavity diring inspiration
- 9. carbon dioxide moves from the blood into these so it can be breathed out
- 11. amount of air breathed in/out in one breath
- 13. the process where gases move down the concentration gradient from a high concentration to a low concentration
- 15. finish the equation for anaerobic respiration - glucose = lactic acid + ?