Across
- 2. When someone is very active, their breathing and pulse becomes ____________
- 5. When entering the lower respiratory system, flows down the ________________, also called the windpipe the air
- 10. After the air flows past the voice box, it enters into the ______________ respiratory system
- 11. The process of transferring gasses back and forth between your body and the air in your lungs
- 13. The sinus produces _______________, which traps dust and dirt
- 14. respiration brings ______________ into the body
- 15. After the air travels down the throat, it continues through the voice box (____________)
- 17. Breathing, occurs in two phases—inhaling and __________
- 18. Is a muscle below the lungs that pulls air into the lungs when it contracts
Down
- 1. The muscle that contracts and relaxes to push blood throughout the body
- 3. beat caused by the heart contracting, or squeezing, to push blood throughout the body
- 4. respiration releases ___________________ from the body
- 6. Keep your respiratory system healthy by not inhaling anything but _____________ air
- 7. When the diaphragm ________________, air is pressed out of the lungs
- 8. Causes respiration and the heart rate to increase
- 9. In the ___________ respiratory system, air enters the body through the nose
- 11. protect the lungs from injury and provide structure to which the diaphragm attaches
- 12. The more _________ someone is, the more oxygen the body needs
- 16. Air travels through the mouth and throat (_____________)