Human Respiration and Circulation (Chapter 1, 2)

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