Respiratory System Crossword

This printable crossword puzzle on the topic of Human Body Systems has 15 clues. Answers range from 4 to 17 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.

Carries air from the trachea to the lungs
Another entrance for air; mouth
Supports and protects the nasal cavity.
Protects Vital Structures in the event of facial trauma.
Releases a fluid to lubricate themselves during ventilation so that the lung can move freely
To warm moisturize and filter air.
Let's oxygen into the bloodstream and removes carbon dioxide.
Carries oxygen from lungs around the body.
Allows gas exchange
Contracts to pull air into the lungs and relaxes to let airflow out of the lungs.
Covers the esophagus to prevent air from entering the digestive tract.
Provides clear airway for air to enter and exit the lungs
Contains vocal folds that vibrate to make the sounds of speech and singing.
Lets air pass from the Nasal Cavity to the Lungs.
Helps oxygen enter the red blood cells to be carried around our body and filters out co2